diff --git a/.github/workflows/python-build-test.yml b/.github/workflows/python-build-test.yml
index 3f20093..c8a1031 100644
--- a/.github/workflows/python-build-test.yml
+++ b/.github/workflows/python-build-test.yml
@@ -45,7 +45,8 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [ "3.8", "3.9", "3.10" ]
+        python-version: [ "3.8", "3.9", "3.10", "3.11" ]
+        rust-version: [ "1.70.0", "stable" ]
       fail-fast: false
     steps:
       - name: Check out from Git
@@ -62,9 +63,15 @@ jobs:
         uses: actions-rust-lang/setup-rust-toolchain@v1
         with:
           components: clippy,rustfmt
-      - name: Rust Lints
-        run: cd rust && cargo fmt --check && cargo clippy --all-targets -- --deny warnings
+          toolchain: ${{ matrix.rust-version }}
       - name: Rust Build
-        run: cd rust && cargo build --all-targets
+        run: cd rust && cargo build --all-targets && cargo build --all-features --all-targets
+      # Lints after build so what clippy needs is already built
+      - name: Rust Lints
+        run: cd rust && cargo fmt --check && cargo clippy --all-targets -- --deny warnings && cargo clippy --all-features --all-targets -- --deny warnings
       - name: Rust Tests
-        run: cd rust && cargo test
\ No newline at end of file
+        run: cd rust && cargo test
+      # At some point, hook up publishing the binary. For now, just make sure it builds.
+      # Once we're ready to publish binaries, this should be built with `--release`.
+      - name: Build Bumble CLI
+        run: cd rust && cargo build --features bumble-tools --bin bumble
\ No newline at end of file
diff --git a/bumble/drivers/__init__.py b/bumble/drivers/__init__.py
index 2decab7..bb63dd7 100644
--- a/bumble/drivers/__init__.py
+++ b/bumble/drivers/__init__.py
@@ -21,6 +21,9 @@ like loading firmware after a cold start.
 # -----------------------------------------------------------------------------
 import abc
 import logging
+import pathlib
+import platform
+import platformdirs
 from . import rtk
 
 
@@ -66,3 +69,22 @@ async def get_driver_for_host(host):
         return driver
 
     return None
+
+
+def project_data_dir() -> pathlib.Path:
+    """
+    Returns:
+        A path to an OS-specific directory for bumble data. The directory is created if
+         it doesn't exist.
+    """
+    if platform.system() == 'Darwin':
+        # platformdirs doesn't handle macOS right: it doesn't assemble a bundle id
+        # out of author & project
+        return platformdirs.user_data_path(
+            appname='com.google.bumble', ensure_exists=True
+        )
+    else:
+        # windows and linux don't use the com qualifier
+        return platformdirs.user_data_path(
+            appname='bumble', appauthor='google', ensure_exists=True
+        )
diff --git a/bumble/drivers/rtk.py b/bumble/drivers/rtk.py
index e7e3c1f..0bce67d 100644
--- a/bumble/drivers/rtk.py
+++ b/bumble/drivers/rtk.py
@@ -446,6 +446,11 @@ class Driver:
             # When the environment variable is set, don't look elsewhere
             return None
 
+        # Then, look where the firmware download tool writes by default
+        if (path := rtk_firmware_dir() / file_name).is_file():
+            logger.debug(f"{file_name} found in project data dir")
+            return path
+
         # Then, look in the package's driver directory
         if (path := pathlib.Path(__file__).parent / "rtk_fw" / file_name).is_file():
             logger.debug(f"{file_name} found in package dir")
@@ -646,3 +651,16 @@ class Driver:
         await self.download_firmware()
         await self.host.send_command(HCI_Reset_Command(), check_result=True)
         logger.info(f"loaded FW image {self.driver_info.fw_name}")
+
+
+def rtk_firmware_dir() -> pathlib.Path:
+    """
+    Returns:
+        A path to a subdir of the project data dir for Realtek firmware.
+         The directory is created if it doesn't exist.
+    """
+    from bumble.drivers import project_data_dir
+
+    p = project_data_dir() / "firmware" / "realtek"
+    p.mkdir(parents=True, exist_ok=True)
+    return p
diff --git a/rust/Cargo.lock b/rust/Cargo.lock
index 399f916..024a1a2 100644
--- a/rust/Cargo.lock
+++ b/rust/Cargo.lock
@@ -4,9 +4,9 @@ version = 3
 
 [[package]]
 name = "addr2line"
-version = "0.20.0"
+version = "0.21.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f4fa78e18c64fce05e902adecd7a5eed15a5e0a3439f7b0e169f0252214865e3"
+checksum = "8a30b2e23b9e17a9f90641c7ab1549cd9b44f296d3ccbf309d2863cfe398a0cb"
 dependencies = [
  "gimli",
 ]
@@ -19,33 +19,32 @@ checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
 
 [[package]]
 name = "aho-corasick"
-version = "1.0.2"
+version = "1.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "43f6cb1bf222025340178f382c426f13757b2960e89779dfcb319c32542a5a41"
+checksum = "0c378d78423fdad8089616f827526ee33c19f2fddbd5de1629152c9593ba4783"
 dependencies = [
  "memchr",
 ]
 
 [[package]]
 name = "anstream"
-version = "0.3.2"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0ca84f3628370c59db74ee214b3263d58f9aadd9b4fe7e711fd87dc452b7f163"
+checksum = "b1f58811cfac344940f1a400b6e6231ce35171f614f26439e80f8c1465c5cc0c"
 dependencies = [
  "anstyle",
  "anstyle-parse",
  "anstyle-query",
  "anstyle-wincon",
  "colorchoice",
- "is-terminal",
  "utf8parse",
 ]
 
 [[package]]
 name = "anstyle"
-version = "1.0.1"
+version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3a30da5c5f2d5e72842e00bcb57657162cdabef0931f40e2deb9b4140440cecd"
+checksum = "15c4c2c83f81532e5845a733998b6971faca23490340a418e9b72a3ec9de12ea"
 
 [[package]]
 name = "anstyle-parse"
@@ -67,9 +66,9 @@ dependencies = [
 
 [[package]]
 name = "anstyle-wincon"
-version = "1.0.1"
+version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "180abfa45703aebe0093f79badacc01b8fd4ea2e35118747e5811127f926e188"
+checksum = "58f54d10c6dfa51283a066ceab3ec1ab78d13fae00aa49243a45e4571fb79dfd"
 dependencies = [
  "anstyle",
  "windows-sys",
@@ -77,9 +76,9 @@ dependencies = [
 
 [[package]]
 name = "anyhow"
-version = "1.0.72"
+version = "1.0.75"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3b13c32d80ecc7ab747b80c3784bce54ee8a7a0cc4fbda9bf4cda2cf6fe90854"
+checksum = "a4668cab20f66d8d020e1fbc0ebe47217433c1b6c8f2040faf858554e394ace6"
 
 [[package]]
 name = "atty"
@@ -100,9 +99,9 @@ checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
 
 [[package]]
 name = "backtrace"
-version = "0.3.68"
+version = "0.3.69"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4319208da049c43661739c5fade2ba182f09d1dc2299b32298d3a31692b17e12"
+checksum = "2089b7e3f35b9dd2d0ed921ead4f6d318c27680d4a5bd167b3ee120edb105837"
 dependencies = [
  "addr2line",
  "cc",
@@ -113,6 +112,12 @@ dependencies = [
  "rustc-demangle",
 ]
 
+[[package]]
+name = "base64"
+version = "0.21.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "414dcefbc63d77c526a76b3afcf6fbb9b5e2791c19c3aa2297733208750c6e53"
+
 [[package]]
 name = "bitflags"
 version = "1.3.2"
@@ -121,16 +126,17 @@ checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
 [[package]]
 name = "bitflags"
-version = "2.3.3"
+version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "630be753d4e58660abd17930c71b647fe46c27ea6b63cc59e1e3851406972e42"
+checksum = "b4682ae6287fcf752ecaabbfcc7b6f9b72aa33933dc23a554d853aea8eea8635"
 
 [[package]]
 name = "bumble"
 version = "0.1.0"
 dependencies = [
  "anyhow",
- "clap 4.3.19",
+ "clap 4.4.1",
+ "directories",
  "env_logger",
  "hex",
  "itertools",
@@ -142,6 +148,7 @@ dependencies = [
  "pyo3",
  "pyo3-asyncio",
  "rand",
+ "reqwest",
  "rusb",
  "strum",
  "strum_macros",
@@ -150,6 +157,12 @@ dependencies = [
  "tokio",
 ]
 
+[[package]]
+name = "bumpalo"
+version = "3.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a3e2c3daef883ecc1b5d58c15adae93470a91d425f3532ba1695849656af3fc1"
+
 [[package]]
 name = "bytes"
 version = "1.4.0"
@@ -158,9 +171,9 @@ checksum = "89b2fd2a0dcf38d7971e2194b6b6eebab45ae01067456a7fd93d5547a61b70be"
 
 [[package]]
 name = "cc"
-version = "1.0.81"
+version = "1.0.83"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6c6b2562119bf28c3439f7f02db99faf0aa1a8cdfe5772a2ee155d32227239f0"
+checksum = "f1174fb0b6ec23863f8b971027804a42614e347eafb0a95bf0b12cdae21fc4d0"
 dependencies = [
  "libc",
 ]
@@ -188,9 +201,9 @@ dependencies = [
 
 [[package]]
 name = "clap"
-version = "4.3.19"
+version = "4.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5fd304a20bff958a57f04c4e96a2e7594cc4490a0e809cbd48bb6437edaa452d"
+checksum = "7c8d502cbaec4595d2e7d5f61e318f05417bd2b66fdc3809498f0d3fdf0bea27"
 dependencies = [
  "clap_builder",
  "clap_derive",
@@ -199,26 +212,26 @@ dependencies = [
 
 [[package]]
 name = "clap_builder"
-version = "4.3.19"
+version = "4.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "01c6a3f08f1fe5662a35cfe393aec09c4df95f60ee93b7556505260f75eee9e1"
+checksum = "5891c7bc0edb3e1c2204fc5e94009affabeb1821c9e5fdc3959536c5c0bb984d"
 dependencies = [
  "anstream",
  "anstyle",
- "clap_lex 0.5.0",
+ "clap_lex 0.5.1",
  "strsim",
 ]
 
 [[package]]
 name = "clap_derive"
-version = "4.3.12"
+version = "4.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "54a9bb5758fc5dfe728d1019941681eccaf0cf8a4189b692a0ee2f2ecf90a050"
+checksum = "c9fd1a5729c4548118d7d70ff234a44868d00489a4b6597b0b020918a0e91a1a"
 dependencies = [
  "heck",
  "proc-macro2",
  "quote",
- "syn 2.0.28",
+ "syn 2.0.29",
 ]
 
 [[package]]
@@ -232,9 +245,9 @@ dependencies = [
 
 [[package]]
 name = "clap_lex"
-version = "0.5.0"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2da6da31387c7e4ef160ffab6d5e7f00c42626fe39aea70a7b0f1773f7dd6c1b"
+checksum = "cd7cc57abe963c6d3b9d8be5b06ba7c8957a930305ca90304f24ef040aa6f961"
 
 [[package]]
 name = "colorchoice"
@@ -242,12 +255,58 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "acbf1af155f9b9ef647e42cdc158db4b64a1b61f743629225fde6f3e0be2a7c7"
 
+[[package]]
+name = "core-foundation"
+version = "0.9.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "194a7a9e6de53fa55116934067c844d9d749312f75c6f6d0980e8c252f8c2146"
+dependencies = [
+ "core-foundation-sys",
+ "libc",
+]
+
+[[package]]
+name = "core-foundation-sys"
+version = "0.8.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e496a50fda8aacccc86d7529e2c1e0892dbd0f898a6b5645b5561b89c3210efa"
+
+[[package]]
+name = "directories"
+version = "5.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9a49173b84e034382284f27f1af4dcbbd231ffa358c0fe316541a7337f376a35"
+dependencies = [
+ "dirs-sys",
+]
+
+[[package]]
+name = "dirs-sys"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "520f05a5cbd335fae5a99ff7a6ab8627577660ee5cfd6a94a6a929b52ff0321c"
+dependencies = [
+ "libc",
+ "option-ext",
+ "redox_users",
+ "windows-sys",
+]
+
 [[package]]
 name = "either"
 version = "1.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a26ae43d7bcc3b814de94796a5e736d4029efb0ee900c12e2d54c993ad1a1e07"
 
+[[package]]
+name = "encoding_rs"
+version = "0.8.33"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7268b386296a025e474d5140678f75d6de9493ae55a5d709eeb9dd08149945e1"
+dependencies = [
+ "cfg-if",
+]
+
 [[package]]
 name = "env_logger"
 version = "0.10.0"
@@ -263,9 +322,9 @@ dependencies = [
 
 [[package]]
 name = "errno"
-version = "0.3.2"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6b30f669a7961ef1631673d2766cc92f52d64f7ef354d4fe0ddfd30ed52f0f4f"
+checksum = "136526188508e25c6fef639d7927dfb3e0e3084488bf202267829cf7fc23dbdd"
 dependencies = [
  "errno-dragonfly",
  "libc",
@@ -288,6 +347,36 @@ version = "2.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6999dc1837253364c2ebb0704ba97994bd874e8f195d665c50b7548f6ea92764"
 
+[[package]]
+name = "fnv"
+version = "1.0.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
+
+[[package]]
+name = "foreign-types"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f6f339eb8adc052cd2ca78910fda869aefa38d22d5cb648e6485e4d3fc06f3b1"
+dependencies = [
+ "foreign-types-shared",
+]
+
+[[package]]
+name = "foreign-types-shared"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "00b0228411908ca8685dba7fc2cdd70ec9990a6e753e89b6ac91a84c40fbaf4b"
+
+[[package]]
+name = "form_urlencoded"
+version = "1.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a62bc1cf6f830c2ec14a513a9fb124d0a213a629668a4186f329db21fe045652"
+dependencies = [
+ "percent-encoding",
+]
+
 [[package]]
 name = "futures"
 version = "0.3.28"
@@ -344,7 +433,7 @@ checksum = "89ca545a94061b6365f2c7355b4b32bd20df3ff95f02da9329b34ccc3bd6ee72"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.28",
+ "syn 2.0.29",
 ]
 
 [[package]]
@@ -390,9 +479,28 @@ dependencies = [
 
 [[package]]
 name = "gimli"
-version = "0.27.3"
+version = "0.28.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b6c80984affa11d98d1b88b66ac8853f143217b399d3c74116778ff8fdb4ed2e"
+checksum = "6fb8d784f27acf97159b40fc4db5ecd8aa23b9ad5ef69cdd136d3bc80665f0c0"
+
+[[package]]
+name = "h2"
+version = "0.3.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "91fc23aa11be92976ef4729127f1a74adf36d8436f7816b185d18df956790833"
+dependencies = [
+ "bytes",
+ "fnv",
+ "futures-core",
+ "futures-sink",
+ "futures-util",
+ "http",
+ "indexmap",
+ "slab",
+ "tokio",
+ "tokio-util",
+ "tracing",
+]
 
 [[package]]
 name = "hashbrown"
@@ -427,12 +535,93 @@ version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
 
+[[package]]
+name = "http"
+version = "0.2.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bd6effc99afb63425aff9b05836f029929e345a6148a14b7ecd5ab67af944482"
+dependencies = [
+ "bytes",
+ "fnv",
+ "itoa",
+]
+
+[[package]]
+name = "http-body"
+version = "0.4.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d5f38f16d184e36f2408a55281cd658ecbd3ca05cce6d6510a176eca393e26d1"
+dependencies = [
+ "bytes",
+ "http",
+ "pin-project-lite",
+]
+
+[[package]]
+name = "httparse"
+version = "1.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d897f394bad6a705d5f4104762e116a75639e470d80901eed05a860a95cb1904"
+
+[[package]]
+name = "httpdate"
+version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "df3b46402a9d5adb4c86a0cf463f42e19994e3ee891101b1841f30a545cb49a9"
+
 [[package]]
 name = "humantime"
 version = "2.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9a3a5bfb195931eeb336b2a7b4d761daec841b97f947d34394601737a7bba5e4"
 
+[[package]]
+name = "hyper"
+version = "0.14.27"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ffb1cfd654a8219eaef89881fdb3bb3b1cdc5fa75ded05d6933b2b382e395468"
+dependencies = [
+ "bytes",
+ "futures-channel",
+ "futures-core",
+ "futures-util",
+ "h2",
+ "http",
+ "http-body",
+ "httparse",
+ "httpdate",
+ "itoa",
+ "pin-project-lite",
+ "socket2 0.4.9",
+ "tokio",
+ "tower-service",
+ "tracing",
+ "want",
+]
+
+[[package]]
+name = "hyper-tls"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d6183ddfa99b85da61a140bea0efc93fdf56ceaa041b37d553518030827f9905"
+dependencies = [
+ "bytes",
+ "hyper",
+ "native-tls",
+ "tokio",
+ "tokio-native-tls",
+]
+
+[[package]]
+name = "idna"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7d20d6b07bfbc108882d88ed8e37d39636dcc260e15e30c45e6ba089610b917c"
+dependencies = [
+ "unicode-bidi",
+ "unicode-normalization",
+]
+
 [[package]]
 name = "indexmap"
 version = "1.9.3"
@@ -451,9 +640,15 @@ checksum = "bfa799dd5ed20a7e349f3b4639aa80d74549c81716d9ec4f994c9b5815598306"
 
 [[package]]
 name = "inventory"
-version = "0.3.11"
+version = "0.3.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a53088c87cf71c9d4f3372a2cb9eea1e7b8a0b1bf8b7f7d23fe5b76dbb07e63b"
+checksum = "e1be380c410bf0595e94992a648ea89db4dd3f3354ba54af206fd2a68cf5ac8e"
+
+[[package]]
+name = "ipnet"
+version = "2.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "28b29a3cd74f0f4598934efe3aeba42bae0eb4680554128851ebbecb02af14e6"
 
 [[package]]
 name = "is-terminal"
@@ -475,6 +670,21 @@ dependencies = [
  "either",
 ]
 
+[[package]]
+name = "itoa"
+version = "1.0.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "af150ab688ff2122fcef229be89cb50dd66af9e01a4ff320cc137eecc9bacc38"
+
+[[package]]
+name = "js-sys"
+version = "0.3.64"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c5f195fe497f702db0f318b07fdd68edb16955aed830df8363d837542f8f935a"
+dependencies = [
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "lazy_static"
 version = "1.4.0"
@@ -517,15 +727,15 @@ dependencies = [
 
 [[package]]
 name = "log"
-version = "0.4.19"
+version = "0.4.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b06a4cde4c0f271a446782e3eff8de789548ce57dbc8eca9292c27f4a42004b4"
+checksum = "b5e6163cb8c49088c2c36f57875e58ccd8c87c7427f7fbd50ea6710b2f3f2e8f"
 
 [[package]]
 name = "memchr"
-version = "2.5.0"
+version = "2.6.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
+checksum = "5486aed0026218e61b8a01d5fbd5a0a134649abb71a0e53b7bc088529dced86e"
 
 [[package]]
 name = "memoffset"
@@ -545,6 +755,12 @@ dependencies = [
  "autocfg",
 ]
 
+[[package]]
+name = "mime"
+version = "0.3.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6877bb514081ee2a7ff5ef9de3281f14a4dd4bceac4c09388074a6b5df8a139a"
+
 [[package]]
 name = "minimal-lexical"
 version = "0.2.1"
@@ -572,17 +788,34 @@ dependencies = [
 ]
 
 [[package]]
-name = "nix"
-version = "0.26.2"
+name = "native-tls"
+version = "0.2.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bfdda3d196821d6af13126e40375cdf7da646a96114af134d5f417a9a1dc8e1a"
+checksum = "07226173c32f2926027b63cce4bcd8076c3552846cbe7925f3aaffeac0a3b92e"
+dependencies = [
+ "lazy_static",
+ "libc",
+ "log",
+ "openssl",
+ "openssl-probe",
+ "openssl-sys",
+ "schannel",
+ "security-framework",
+ "security-framework-sys",
+ "tempfile",
+]
+
+[[package]]
+name = "nix"
+version = "0.26.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "598beaf3cc6fdd9a5dfb1630c2800c7acd31df7aaf0f565796fba2b53ca1af1b"
 dependencies = [
  "bitflags 1.3.2",
  "cfg-if",
  "libc",
  "memoffset 0.7.1",
  "pin-utils",
- "static_assertions",
 ]
 
 [[package]]
@@ -607,9 +840,9 @@ dependencies = [
 
 [[package]]
 name = "object"
-version = "0.31.1"
+version = "0.32.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8bda667d9f2b5051b8833f59f3bf748b28ef54f850f4fcb389a252aa383866d1"
+checksum = "77ac5bbd07aea88c60a577a1ce218075ffd59208b2d7ca97adf9bfc5aeb21ebe"
 dependencies = [
  "memchr",
 ]
@@ -620,6 +853,56 @@ version = "1.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dd8b5dd2ae5ed71462c540258bedcb51965123ad7e7ccf4b9a8cafaa4a63576d"
 
+[[package]]
+name = "openssl"
+version = "0.10.57"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bac25ee399abb46215765b1cb35bc0212377e58a061560d8b29b024fd0430e7c"
+dependencies = [
+ "bitflags 2.4.0",
+ "cfg-if",
+ "foreign-types",
+ "libc",
+ "once_cell",
+ "openssl-macros",
+ "openssl-sys",
+]
+
+[[package]]
+name = "openssl-macros"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a948666b637a0f465e8564c73e89d4dde00d72d4d473cc972f390fc3dcee7d9c"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.29",
+]
+
+[[package]]
+name = "openssl-probe"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ff011a302c396a5197692431fc1948019154afc178baf7d8e37367442a4601cf"
+
+[[package]]
+name = "openssl-sys"
+version = "0.9.92"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "db7e971c2c2bba161b2d2fdf37080177eff520b3bc044787c7f1f5f9e78d869b"
+dependencies = [
+ "cc",
+ "libc",
+ "pkg-config",
+ "vcpkg",
+]
+
+[[package]]
+name = "option-ext"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "04744f49eae99ab78e0d5c0b603ab218f515ea8cfe5a456d7629ad883a3b6e7d"
+
 [[package]]
 name = "os_str_bytes"
 version = "6.5.1"
@@ -650,16 +933,22 @@ checksum = "93f00c865fe7cabf650081affecd3871070f26767e7b2070a3ffae14c654b447"
 dependencies = [
  "cfg-if",
  "libc",
- "redox_syscall",
+ "redox_syscall 0.3.5",
  "smallvec",
  "windows-targets",
 ]
 
 [[package]]
-name = "pin-project-lite"
-version = "0.2.10"
+name = "percent-encoding"
+version = "2.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4c40d25201921e5ff0c862a505c6557ea88568a4e3ace775ab55e93f2f4f9d57"
+checksum = "9b2a4787296e9989611394c33f193f676704af1686e70b8f8033ab5ba9a35a94"
+
+[[package]]
+name = "pin-project-lite"
+version = "0.2.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8afb450f006bf6385ca15ef45d71d2288452bc3683ce2e2cacc0d18e4be60b58"
 
 [[package]]
 name = "pin-utils"
@@ -778,9 +1067,9 @@ dependencies = [
 
 [[package]]
 name = "quote"
-version = "1.0.32"
+version = "1.0.33"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "50f3b39ccfb720540debaa0164757101c08ecb8d326b15358ce76a62c7e85965"
+checksum = "5267fca4496028628a95160fc423a33e8b2e6af8a5302579e322e4b520293cae"
 dependencies = [
  "proc-macro2",
 ]
@@ -815,6 +1104,15 @@ dependencies = [
  "getrandom",
 ]
 
+[[package]]
+name = "redox_syscall"
+version = "0.2.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fb5a58c1855b4b6819d59012155603f0b22ad30cad752600aadfcb695265519a"
+dependencies = [
+ "bitflags 1.3.2",
+]
+
 [[package]]
 name = "redox_syscall"
 version = "0.3.5"
@@ -825,10 +1123,21 @@ dependencies = [
 ]
 
 [[package]]
-name = "regex"
-version = "1.9.1"
+name = "redox_users"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2eae68fc220f7cf2532e4494aded17545fce192d59cd996e0fe7887f4ceb575"
+checksum = "b033d837a7cf162d7993aded9304e30a83213c648b6e389db233191f891e5c2b"
+dependencies = [
+ "getrandom",
+ "redox_syscall 0.2.16",
+ "thiserror",
+]
+
+[[package]]
+name = "regex"
+version = "1.9.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "12de2eff854e5fa4b1295edd650e227e9d8fb0c9e90b12e7f36d6a6811791a29"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -838,9 +1147,9 @@ dependencies = [
 
 [[package]]
 name = "regex-automata"
-version = "0.3.4"
+version = "0.3.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b7b6d6190b7594385f61bd3911cd1be99dfddcfc365a4160cc2ab5bff4aed294"
+checksum = "49530408a136e16e5b486e883fbb6ba058e8e4e8ae6621a77b048b314336e629"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -849,15 +1158,52 @@ dependencies = [
 
 [[package]]
 name = "regex-syntax"
-version = "0.7.4"
+version = "0.7.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e5ea92a5b6195c6ef2a0295ea818b312502c6fc94dde986c5553242e18fd4ce2"
+checksum = "dbb5fb1acd8a1a18b3dd5be62d25485eb770e05afb408a9627d14d451bae12da"
+
+[[package]]
+name = "reqwest"
+version = "0.11.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3e9ad3fe7488d7e34558a2033d45a0c90b72d97b4f80705666fea71472e2e6a1"
+dependencies = [
+ "base64",
+ "bytes",
+ "encoding_rs",
+ "futures-core",
+ "futures-util",
+ "h2",
+ "http",
+ "http-body",
+ "hyper",
+ "hyper-tls",
+ "ipnet",
+ "js-sys",
+ "log",
+ "mime",
+ "native-tls",
+ "once_cell",
+ "percent-encoding",
+ "pin-project-lite",
+ "serde",
+ "serde_json",
+ "serde_urlencoded",
+ "tokio",
+ "tokio-native-tls",
+ "tower-service",
+ "url",
+ "wasm-bindgen",
+ "wasm-bindgen-futures",
+ "web-sys",
+ "winreg",
+]
 
 [[package]]
 name = "rusb"
-version = "0.9.2"
+version = "0.9.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "44a8c36914f9b1a3be712c1dfa48c9b397131f9a75707e570a391735f785c5d1"
+checksum = "45fff149b6033f25e825cbb7b2c625a11ee8e6dac09264d49beb125e39aa97bf"
 dependencies = [
  "libc",
  "libusb1-sys",
@@ -871,11 +1217,11 @@ checksum = "d626bb9dae77e28219937af045c257c28bfd3f69333c512553507f5f9798cb76"
 
 [[package]]
 name = "rustix"
-version = "0.38.6"
+version = "0.38.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1ee020b1716f0a80e2ace9b03441a749e402e86712f15f16fe8a8f75afac732f"
+checksum = "ed6248e1caa625eb708e266e06159f135e8c26f2bb7ceb72dc4b2766d0340964"
 dependencies = [
- "bitflags 2.3.3",
+ "bitflags 2.4.0",
  "errno",
  "libc",
  "linux-raw-sys",
@@ -888,12 +1234,93 @@ version = "1.0.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7ffc183a10b4478d04cbbbfc96d0873219d962dd5accaff2ffbd4ceb7df837f4"
 
+[[package]]
+name = "ryu"
+version = "1.0.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1ad4cc8da4ef723ed60bced201181d83791ad433213d8c24efffda1eec85d741"
+
+[[package]]
+name = "schannel"
+version = "0.1.22"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0c3733bf4cf7ea0880754e19cb5a462007c4a8c1914bff372ccc95b464f1df88"
+dependencies = [
+ "windows-sys",
+]
+
 [[package]]
 name = "scopeguard"
 version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
 
+[[package]]
+name = "security-framework"
+version = "2.9.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05b64fb303737d99b81884b2c63433e9ae28abebe5eb5045dcdd175dc2ecf4de"
+dependencies = [
+ "bitflags 1.3.2",
+ "core-foundation",
+ "core-foundation-sys",
+ "libc",
+ "security-framework-sys",
+]
+
+[[package]]
+name = "security-framework-sys"
+version = "2.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e932934257d3b408ed8f30db49d85ea163bfe74961f017f405b025af298f0c7a"
+dependencies = [
+ "core-foundation-sys",
+ "libc",
+]
+
+[[package]]
+name = "serde"
+version = "1.0.188"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf9e0fcba69a370eed61bcf2b728575f726b50b55cba78064753d708ddc7549e"
+dependencies = [
+ "serde_derive",
+]
+
+[[package]]
+name = "serde_derive"
+version = "1.0.188"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4eca7ac642d82aa35b60049a6eccb4be6be75e599bd2e9adb5f875a737654af2"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.29",
+]
+
+[[package]]
+name = "serde_json"
+version = "1.0.105"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "693151e1ac27563d6dbcec9dee9fbd5da8539b20fa14ad3752b2e6d363ace360"
+dependencies = [
+ "itoa",
+ "ryu",
+ "serde",
+]
+
+[[package]]
+name = "serde_urlencoded"
+version = "0.7.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d3491c14715ca2294c4d6a88f15e84739788c1d030eed8c110436aafdaa2f3fd"
+dependencies = [
+ "form_urlencoded",
+ "itoa",
+ "ryu",
+ "serde",
+]
+
 [[package]]
 name = "signal-hook-registry"
 version = "1.4.1"
@@ -905,9 +1332,9 @@ dependencies = [
 
 [[package]]
 name = "slab"
-version = "0.4.8"
+version = "0.4.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6528351c9bc8ab22353f9d776db39a20288e8d6c37ef8cfe3317cf875eecfc2d"
+checksum = "8f92a496fb766b417c996b9c5e57daf2f7ad3b0bebe1ccfca4856390e3d3bb67"
 dependencies = [
  "autocfg",
 ]
@@ -929,10 +1356,14 @@ dependencies = [
 ]
 
 [[package]]
-name = "static_assertions"
-version = "1.1.0"
+name = "socket2"
+version = "0.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
+checksum = "2538b18701741680e0322a2302176d3253a35388e2e62f172f64f4f16605f877"
+dependencies = [
+ "libc",
+ "windows-sys",
+]
 
 [[package]]
 name = "strsim"
@@ -948,15 +1379,15 @@ checksum = "290d54ea6f91c969195bdbcd7442c8c2a2ba87da8bf60a7ee86a235d4bc1e125"
 
 [[package]]
 name = "strum_macros"
-version = "0.25.1"
+version = "0.25.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6069ca09d878a33f883cc06aaa9718ede171841d3832450354410b718b097232"
+checksum = "ad8d03b598d3d0fff69bf533ee3ef19b8eeb342729596df84bcc7e1f96ec4059"
 dependencies = [
  "heck",
  "proc-macro2",
  "quote",
  "rustversion",
- "syn 2.0.28",
+ "syn 2.0.29",
 ]
 
 [[package]]
@@ -972,9 +1403,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.28"
+version = "2.0.29"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "04361975b3f5e348b2189d8dc55bc942f278b2d482a6a0365de5bdd62d351567"
+checksum = "c324c494eba9d92503e6f1ef2e6df781e78f6a7705a0202d9801b198807d518a"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -989,13 +1420,13 @@ checksum = "9d0e916b1148c8e263850e1ebcbd046f333e0683c724876bb0da63ea4373dc8a"
 
 [[package]]
 name = "tempfile"
-version = "3.7.0"
+version = "3.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5486094ee78b2e5038a6382ed7645bc084dc2ec433426ca4c3cb61e2007b8998"
+checksum = "cb94d2f3cc536af71caac6b6fcebf65860b347e7ce0cc9ebe8f70d3e521054ef"
 dependencies = [
  "cfg-if",
  "fastrand",
- "redox_syscall",
+ "redox_syscall 0.3.5",
  "rustix",
  "windows-sys",
 ]
@@ -1017,31 +1448,45 @@ checksum = "222a222a5bfe1bba4a77b45ec488a741b3cb8872e5e499451fd7d0129c9c7c3d"
 
 [[package]]
 name = "thiserror"
-version = "1.0.44"
+version = "1.0.47"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "611040a08a0439f8248d1990b111c95baa9c704c805fa1f62104b39655fd7f90"
+checksum = "97a802ec30afc17eee47b2855fc72e0c4cd62be9b4efe6591edde0ec5bd68d8f"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.44"
+version = "1.0.47"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "090198534930841fab3a5d1bb637cde49e339654e606195f8d9c76eeb081dc96"
+checksum = "6bb623b56e39ab7dcd4b1b98bb6c8f8d907ed255b18de254088016b27a8ee19b"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.28",
+ "syn 2.0.29",
 ]
 
 [[package]]
-name = "tokio"
-version = "1.29.1"
+name = "tinyvec"
+version = "1.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "532826ff75199d5833b9d2c5fe410f29235e25704ee5f0ef599fb51c21f4a4da"
+checksum = "87cc5ceb3875bb20c2890005a4e226a4651264a5c75edb2421b52861a0a0cb50"
+dependencies = [
+ "tinyvec_macros",
+]
+
+[[package]]
+name = "tinyvec_macros"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
+
+[[package]]
+name = "tokio"
+version = "1.32.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "17ed6077ed6cd6c74735e21f37eb16dc3935f96878b1fe961074089cc80893f9"
 dependencies = [
- "autocfg",
  "backtrace",
  "bytes",
  "libc",
@@ -1050,7 +1495,7 @@ dependencies = [
  "parking_lot",
  "pin-project-lite",
  "signal-hook-registry",
- "socket2",
+ "socket2 0.5.3",
  "tokio-macros",
  "windows-sys",
 ]
@@ -1063,21 +1508,103 @@ checksum = "630bdcf245f78637c13ec01ffae6187cca34625e8c63150d424b59e55af2675e"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.28",
+ "syn 2.0.29",
 ]
 
+[[package]]
+name = "tokio-native-tls"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bbae76ab933c85776efabc971569dd6119c580d8f5d448769dec1764bf796ef2"
+dependencies = [
+ "native-tls",
+ "tokio",
+]
+
+[[package]]
+name = "tokio-util"
+version = "0.7.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "806fe8c2c87eccc8b3267cbae29ed3ab2d0bd37fca70ab622e46aaa9375ddb7d"
+dependencies = [
+ "bytes",
+ "futures-core",
+ "futures-sink",
+ "pin-project-lite",
+ "tokio",
+ "tracing",
+]
+
+[[package]]
+name = "tower-service"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b6bc1c9ce2b5135ac7f93c72918fc37feb872bdc6a5533a8b85eb4b86bfdae52"
+
+[[package]]
+name = "tracing"
+version = "0.1.37"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8ce8c33a8d48bd45d624a6e523445fd21ec13d3653cd51f681abf67418f54eb8"
+dependencies = [
+ "cfg-if",
+ "pin-project-lite",
+ "tracing-core",
+]
+
+[[package]]
+name = "tracing-core"
+version = "0.1.31"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0955b8137a1df6f1a2e9a37d8a6656291ff0297c1a97c24e0d8425fe2312f79a"
+dependencies = [
+ "once_cell",
+]
+
+[[package]]
+name = "try-lock"
+version = "0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3528ecfd12c466c6f163363caf2d02a71161dd5e1cc6ae7b34207ea2d42d81ed"
+
+[[package]]
+name = "unicode-bidi"
+version = "0.3.13"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "92888ba5573ff080736b3648696b70cafad7d250551175acbaa4e0385b3e1460"
+
 [[package]]
 name = "unicode-ident"
 version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "301abaae475aa91687eb82514b328ab47a211a533026cb25fc3e519b86adfc3c"
 
+[[package]]
+name = "unicode-normalization"
+version = "0.1.22"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c5713f0fc4b5db668a2ac63cdb7bb4469d8c9fed047b1d0292cc7b0ce2ba921"
+dependencies = [
+ "tinyvec",
+]
+
 [[package]]
 name = "unindent"
 version = "0.1.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e1766d682d402817b5ac4490b3c3002d91dfa0d22812f341609f97b08757359c"
 
+[[package]]
+name = "url"
+version = "2.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "143b538f18257fac9cad154828a57c6bf5157e1aa604d4816b5995bf6de87ae5"
+dependencies = [
+ "form_urlencoded",
+ "idna",
+ "percent-encoding",
+]
+
 [[package]]
 name = "utf8parse"
 version = "0.2.1"
@@ -1090,12 +1617,97 @@ version = "0.2.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
 
+[[package]]
+name = "want"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bfa7760aed19e106de2c7c0b581b509f2f25d3dacaf737cb82ac61bc6d760b0e"
+dependencies = [
+ "try-lock",
+]
+
 [[package]]
 name = "wasi"
 version = "0.11.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
+[[package]]
+name = "wasm-bindgen"
+version = "0.2.87"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7706a72ab36d8cb1f80ffbf0e071533974a60d0a308d01a5d0375bf60499a342"
+dependencies = [
+ "cfg-if",
+ "wasm-bindgen-macro",
+]
+
+[[package]]
+name = "wasm-bindgen-backend"
+version = "0.2.87"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5ef2b6d3c510e9625e5fe6f509ab07d66a760f0885d858736483c32ed7809abd"
+dependencies = [
+ "bumpalo",
+ "log",
+ "once_cell",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.29",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-futures"
+version = "0.4.37"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c02dbc21516f9f1f04f187958890d7e6026df8d16540b7ad9492bc34a67cea03"
+dependencies = [
+ "cfg-if",
+ "js-sys",
+ "wasm-bindgen",
+ "web-sys",
+]
+
+[[package]]
+name = "wasm-bindgen-macro"
+version = "0.2.87"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dee495e55982a3bd48105a7b947fd2a9b4a8ae3010041b9e0faab3f9cd028f1d"
+dependencies = [
+ "quote",
+ "wasm-bindgen-macro-support",
+]
+
+[[package]]
+name = "wasm-bindgen-macro-support"
+version = "0.2.87"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "54681b18a46765f095758388f2d0cf16eb8d4169b639ab575a8f5693af210c7b"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.29",
+ "wasm-bindgen-backend",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-shared"
+version = "0.2.87"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ca6ad05a4870b2bf5fe995117d3728437bd27d7cd5f06f13c17443ef369775a1"
+
+[[package]]
+name = "web-sys"
+version = "0.3.64"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9b85cbef8c220a6abc02aefd892dfc0fc23afb1c6a426316ec33253a3877249b"
+dependencies = [
+ "js-sys",
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -1138,9 +1750,9 @@ dependencies = [
 
 [[package]]
 name = "windows-targets"
-version = "0.48.1"
+version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05d4b17490f70499f20b9e791dcf6a299785ce8af4d709018206dc5b4953e95f"
+checksum = "9a2fa6e2155d7247be68c096456083145c183cbbbc2764150dda45a87197940c"
 dependencies = [
  "windows_aarch64_gnullvm",
  "windows_aarch64_msvc",
@@ -1153,42 +1765,52 @@ dependencies = [
 
 [[package]]
 name = "windows_aarch64_gnullvm"
-version = "0.48.0"
+version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "91ae572e1b79dba883e0d315474df7305d12f569b400fcf90581b06062f7e1bc"
+checksum = "2b38e32f0abccf9987a4e3079dfb67dcd799fb61361e53e2882c3cbaf0d905d8"
 
 [[package]]
 name = "windows_aarch64_msvc"
-version = "0.48.0"
+version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2ef27e0d7bdfcfc7b868b317c1d32c641a6fe4629c171b8928c7b08d98d7cf3"
+checksum = "dc35310971f3b2dbbf3f0690a219f40e2d9afcf64f9ab7cc1be722937c26b4bc"
 
 [[package]]
 name = "windows_i686_gnu"
-version = "0.48.0"
+version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "622a1962a7db830d6fd0a69683c80a18fda201879f0f447f065a3b7467daa241"
+checksum = "a75915e7def60c94dcef72200b9a8e58e5091744960da64ec734a6c6e9b3743e"
 
 [[package]]
 name = "windows_i686_msvc"
-version = "0.48.0"
+version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4542c6e364ce21bf45d69fdd2a8e455fa38d316158cfd43b3ac1c5b1b19f8e00"
+checksum = "8f55c233f70c4b27f66c523580f78f1004e8b5a8b659e05a4eb49d4166cca406"
 
 [[package]]
 name = "windows_x86_64_gnu"
-version = "0.48.0"
+version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ca2b8a661f7628cbd23440e50b05d705db3686f894fc9580820623656af974b1"
+checksum = "53d40abd2583d23e4718fddf1ebec84dbff8381c07cae67ff7768bbf19c6718e"
 
 [[package]]
 name = "windows_x86_64_gnullvm"
-version = "0.48.0"
+version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7896dbc1f41e08872e9d5e8f8baa8fdd2677f29468c4e156210174edc7f7b953"
+checksum = "0b7b52767868a23d5bab768e390dc5f5c55825b6d30b86c844ff2dc7414044cc"
 
 [[package]]
 name = "windows_x86_64_msvc"
-version = "0.48.0"
+version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1a515f5799fe4961cb532f983ce2b23082366b898e52ffbce459c86f67c8378a"
+checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
+
+[[package]]
+name = "winreg"
+version = "0.50.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "524e57b2c537c0f9b1e69f1965311ec12182b4122e45035b1508cd24d2adadb1"
+dependencies = [
+ "cfg-if",
+ "windows-sys",
+]
diff --git a/rust/Cargo.toml b/rust/Cargo.toml
index 523074c..c12709f 100644
--- a/rust/Cargo.toml
+++ b/rust/Cargo.toml
@@ -10,7 +10,7 @@ documentation = "https://docs.rs/crate/bumble"
 authors = ["Marshall Pierce <marshallpierce@google.com>"]
 keywords = ["bluetooth", "ble"]
 categories = ["api-bindings", "network-programming"]
-rust-version = "1.69.0"
+rust-version = "1.70.0"
 
 [dependencies]
 pyo3 = { version = "0.18.3", features = ["macros"] }
@@ -23,7 +23,16 @@ hex = "0.4.3"
 itertools = "0.11.0"
 lazy_static = "1.4.0"
 thiserror = "1.0.41"
+
+# CLI
 anyhow = { version = "1.0.71", optional = true }
+clap = { version = "4.3.3", features = ["derive"], optional = true }
+directories = { version = "5.0.1", optional = true }
+owo-colors = { version = "3.5.0", optional = true }
+reqwest = { version = "0.11.20", features = ["blocking"], optional = true }
+rusb = { version = "0.9.2", optional = true }
+log = { version = "0.4.19", optional = true }
+env_logger = { version = "0.10.0", optional = true }
 
 [dev-dependencies]
 tokio = { version = "1.28.2", features = ["full"] }
@@ -32,17 +41,25 @@ nix = "0.26.2"
 anyhow = "1.0.71"
 pyo3 = { version = "0.18.3", features = ["macros", "anyhow"] }
 pyo3-asyncio = { version = "0.18.0", features = ["tokio-runtime", "attributes", "testing"] }
+rusb = "0.9.2"
+rand = "0.8.5"
 clap = { version = "4.3.3", features = ["derive"] }
 owo-colors = "3.5.0"
 log = "0.4.19"
 env_logger = "0.10.0"
-rusb = "0.9.2"
-rand = "0.8.5"
+
+[package.metadata.docs.rs]
+rustdoc-args = ["--generate-link-to-definition"]
 
 [[bin]]
 name = "gen-assigned-numbers"
 path = "tools/gen_assigned_numbers.rs"
-required-features = ["bumble-dev-tools"]
+required-features = ["bumble-codegen"]
+
+[[bin]]
+name = "bumble"
+path = "src/main.rs"
+required-features = ["bumble-tools"]
 
 # test entry point that uses pyo3_asyncio's test harness
 [[test]]
@@ -53,4 +70,7 @@ harness = false
 [features]
 anyhow = ["pyo3/anyhow"]
 pyo3-asyncio-attributes = ["pyo3-asyncio/attributes"]
-bumble-dev-tools = ["dep:anyhow"]
\ No newline at end of file
+bumble-codegen = ["dep:anyhow"]
+# separate feature for CLI so that dependencies don't spend time building these
+bumble-tools = ["dep:clap", "anyhow", "dep:anyhow", "dep:directories", "pyo3-asyncio-attributes", "dep:owo-colors", "dep:reqwest", "dep:rusb", "dep:log", "dep:env_logger"]
+default = []
\ No newline at end of file
diff --git a/rust/README.md b/rust/README.md
index 2684875..23dec03 100644
--- a/rust/README.md
+++ b/rust/README.md
@@ -5,7 +5,8 @@ Rust wrappers around the [Bumble](https://github.com/google/bumble) Python API.
 Method calls are mapped to the equivalent Python, and return types adapted where
 relevant.
 
-See the `examples` directory for usage.
+See the CLI in `src/main.rs` or the `examples` directory for how to use the
+Bumble API.
 
 # Usage
 
@@ -27,6 +28,15 @@ PYTHONPATH=..:~/.virtualenvs/bumble/lib/python3.10/site-packages/ \
 Run the corresponding `battery_server` Python example, and launch an emulator in
 Android Studio (currently, Canary is required) to run netsim.
 
+# CLI
+
+Explore the available subcommands:
+
+```
+PYTHONPATH=..:[virtualenv site-packages] \
+    cargo run --features bumble-tools --bin bumble -- --help
+```
+
 # Development
 
 Run the tests:
@@ -43,7 +53,7 @@ cargo clippy --all-targets
 
 ## Code gen
 
-To have the fastest startup while keeping the build simple, code gen for 
+To have the fastest startup while keeping the build simple, code gen for
 assigned numbers is done with the `gen_assigned_numbers` tool. It should
 be re-run whenever the Python assigned numbers are changed. To ensure that the
 generated code is kept up to date, the Rust data is compared to the Python
@@ -52,5 +62,5 @@ in tests at `pytests/assigned_numbers.rs`.
 To regenerate the assigned number tables based on the Python codebase:
 
 ```
-PYTHONPATH=.. cargo run --bin gen-assigned-numbers --features bumble-dev-tools
+PYTHONPATH=.. cargo run --bin gen-assigned-numbers --features bumble-codegen
 ```
\ No newline at end of file
diff --git a/rust/pytests/wrapper.rs b/rust/pytests/wrapper.rs
index 333005b..8f69dd7 100644
--- a/rust/pytests/wrapper.rs
+++ b/rust/pytests/wrapper.rs
@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-use bumble::wrapper::transport::Transport;
+use bumble::wrapper::{drivers::rtk::DriverInfo, transport::Transport};
 use nix::sys::stat::Mode;
 use pyo3::PyResult;
 
@@ -29,3 +29,9 @@ async fn fifo_transport_can_open() -> PyResult<()> {
 
     Ok(())
 }
+
+#[pyo3_asyncio::tokio::test]
+async fn realtek_driver_info_all_drivers() -> PyResult<()> {
+    assert_eq!(12, DriverInfo::all_drivers()?.len());
+    Ok(())
+}
diff --git a/rust/resources/test/firmware/realtek/README.md b/rust/resources/test/firmware/realtek/README.md
new file mode 100644
index 0000000..4c49608
--- /dev/null
+++ b/rust/resources/test/firmware/realtek/README.md
@@ -0,0 +1,4 @@
+This dir contains samples firmware images in the format used for Realtek chips,
+but with repetitions of the length of the section as a little-endian 32-bit int
+for the patch data instead of actual firmware, since we only need the structure
+to test parsing.
\ No newline at end of file
diff --git a/rust/resources/test/firmware/realtek/rtl8723b_fw_structure.bin b/rust/resources/test/firmware/realtek/rtl8723b_fw_structure.bin
new file mode 100644
index 0000000..077cdc3
Binary files /dev/null and b/rust/resources/test/firmware/realtek/rtl8723b_fw_structure.bin differ
diff --git a/rust/resources/test/firmware/realtek/rtl8761bu_fw_structure.bin b/rust/resources/test/firmware/realtek/rtl8761bu_fw_structure.bin
new file mode 100644
index 0000000..94df0ba
Binary files /dev/null and b/rust/resources/test/firmware/realtek/rtl8761bu_fw_structure.bin differ
diff --git a/rust/src/cli/firmware/mod.rs b/rust/src/cli/firmware/mod.rs
new file mode 100644
index 0000000..1fa1417
--- /dev/null
+++ b/rust/src/cli/firmware/mod.rs
@@ -0,0 +1,15 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+pub(crate) mod rtk;
diff --git a/rust/src/cli/firmware/rtk.rs b/rust/src/cli/firmware/rtk.rs
new file mode 100644
index 0000000..f5524a4
--- /dev/null
+++ b/rust/src/cli/firmware/rtk.rs
@@ -0,0 +1,265 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! Realtek firmware tools
+
+use crate::{Download, Source};
+use anyhow::anyhow;
+use bumble::wrapper::{
+    drivers::rtk::{Driver, DriverInfo, Firmware},
+    host::{DriverFactory, Host},
+    transport::Transport,
+};
+use owo_colors::{colors::css, OwoColorize};
+use pyo3::PyResult;
+use std::{fs, path};
+
+pub(crate) async fn download(dl: Download) -> PyResult<()> {
+    let data_dir = dl
+        .output_dir
+        .or_else(|| {
+            directories::ProjectDirs::from("com", "google", "bumble")
+                .map(|pd| pd.data_local_dir().join("firmware").join("realtek"))
+        })
+        .unwrap_or_else(|| {
+            eprintln!("Could not determine standard data directory");
+            path::PathBuf::from(".")
+        });
+    fs::create_dir_all(&data_dir)?;
+
+    let (base_url, uses_bin_suffix) = match dl.source {
+        Source::LinuxKernel => ("https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/plain/rtl_bt", true),
+        Source::RealtekOpensource => ("https://github.com/Realtek-OpenSource/android_hardware_realtek/raw/rtk1395/bt/rtkbt/Firmware/BT", false),
+        Source::LinuxFromScratch => ("https://anduin.linuxfromscratch.org/sources/linux-firmware/rtl_bt", true),
+    };
+
+    println!("Downloading");
+    println!("{} {}", "FROM:".green(), base_url);
+    println!("{} {}", "TO:".green(), data_dir.to_string_lossy());
+
+    let url_for_file = |file_name: &str| {
+        let url_suffix = if uses_bin_suffix {
+            file_name
+        } else {
+            file_name.trim_end_matches(".bin")
+        };
+
+        let mut url = base_url.to_string();
+        url.push('/');
+        url.push_str(url_suffix);
+        url
+    };
+
+    let to_download = if let Some(single) = dl.single {
+        vec![(
+            format!("{single}_fw.bin"),
+            Some(format!("{single}_config.bin")),
+            false,
+        )]
+    } else {
+        DriverInfo::all_drivers()?
+            .iter()
+            .map(|di| Ok((di.firmware_name()?, di.config_name()?, di.config_needed()?)))
+            .collect::<PyResult<Vec<_>>>()?
+    };
+
+    let client = SimpleClient::new();
+
+    for (fw_filename, config_filename, config_needed) in to_download {
+        println!("{}", "---".yellow());
+        let fw_path = data_dir.join(&fw_filename);
+        let config_path = config_filename.as_ref().map(|f| data_dir.join(f));
+
+        if fw_path.exists() && !dl.overwrite {
+            println!(
+                "{}",
+                format!("{} already exists, skipping", fw_path.to_string_lossy())
+                    .fg::<css::Orange>()
+            );
+            continue;
+        }
+        if let Some(cp) = config_path.as_ref() {
+            if cp.exists() && !dl.overwrite {
+                println!(
+                    "{}",
+                    format!("{} already exists, skipping", cp.to_string_lossy())
+                        .fg::<css::Orange>()
+                );
+                continue;
+            }
+        }
+
+        let fw_contents = match client.get(&url_for_file(&fw_filename)).await {
+            Ok(data) => {
+                println!("Downloaded {}: {} bytes", fw_filename, data.len());
+                data
+            }
+            Err(e) => {
+                eprintln!(
+                    "{} {} {:?}",
+                    "Failed to download".red(),
+                    fw_filename.red(),
+                    e
+                );
+                continue;
+            }
+        };
+
+        let config_contents = if let Some(cn) = &config_filename {
+            match client.get(&url_for_file(cn)).await {
+                Ok(data) => {
+                    println!("Downloaded {}: {} bytes", cn, data.len());
+                    Some(data)
+                }
+                Err(e) => {
+                    if config_needed {
+                        eprintln!("{} {} {:?}", "Failed to download".red(), cn.red(), e);
+                        continue;
+                    } else {
+                        eprintln!(
+                            "{}",
+                            format!("No config available as {cn}").fg::<css::Orange>()
+                        );
+                        None
+                    }
+                }
+            }
+        } else {
+            None
+        };
+
+        fs::write(&fw_path, &fw_contents)?;
+        if !dl.no_parse && config_filename.is_some() {
+            println!("{} {}", "Parsing:".cyan(), &fw_filename);
+            match Firmware::parse(&fw_contents).map_err(|e| anyhow!("Parse error: {:?}", e)) {
+                Ok(fw) => dump_firmware_desc(&fw),
+                Err(e) => {
+                    eprintln!(
+                        "{} {:?}",
+                        "Could not parse firmware:".fg::<css::Orange>(),
+                        e
+                    );
+                }
+            }
+        }
+        if let Some((cp, cd)) = config_path
+            .as_ref()
+            .and_then(|p| config_contents.map(|c| (p, c)))
+        {
+            fs::write(cp, &cd)?;
+        }
+    }
+
+    Ok(())
+}
+
+pub(crate) fn parse(firmware_path: &path::Path) -> PyResult<()> {
+    let contents = fs::read(firmware_path)?;
+    let fw = Firmware::parse(&contents)
+        // squish the error into a string to avoid the error type requiring that the input be
+        // 'static
+        .map_err(|e| anyhow!("Parse error: {:?}", e))?;
+
+    dump_firmware_desc(&fw);
+
+    Ok(())
+}
+
+pub(crate) async fn info(transport: &str, force: bool) -> PyResult<()> {
+    let transport = Transport::open(transport).await?;
+
+    let mut host = Host::new(transport.source()?, transport.sink()?)?;
+    host.reset(DriverFactory::None).await?;
+
+    if !force && !Driver::check(&host).await? {
+        println!("USB device not supported by this RTK driver");
+    } else if let Some(driver_info) = Driver::driver_info_for_host(&host).await? {
+        println!("Driver:");
+        println!("  {:10} {:04X}", "ROM:", driver_info.rom()?);
+        println!("  {:10} {}", "Firmware:", driver_info.firmware_name()?);
+        println!(
+            "  {:10} {}",
+            "Config:",
+            driver_info.config_name()?.unwrap_or_default()
+        );
+    } else {
+        println!("Firmware already loaded or no supported driver for this device.")
+    }
+
+    Ok(())
+}
+
+pub(crate) async fn load(transport: &str, force: bool) -> PyResult<()> {
+    let transport = Transport::open(transport).await?;
+
+    let mut host = Host::new(transport.source()?, transport.sink()?)?;
+    host.reset(DriverFactory::None).await?;
+
+    match Driver::for_host(&host, force).await? {
+        None => {
+            eprintln!("Firmware already loaded or no supported driver for this device.");
+        }
+        Some(mut d) => d.download_firmware().await?,
+    };
+
+    Ok(())
+}
+
+pub(crate) async fn drop(transport: &str) -> PyResult<()> {
+    let transport = Transport::open(transport).await?;
+
+    let mut host = Host::new(transport.source()?, transport.sink()?)?;
+    host.reset(DriverFactory::None).await?;
+
+    Driver::drop_firmware(&mut host).await?;
+
+    Ok(())
+}
+
+fn dump_firmware_desc(fw: &Firmware) {
+    println!(
+        "Firmware: version=0x{:08X} project_id=0x{:04X}",
+        fw.version(),
+        fw.project_id()
+    );
+    for p in fw.patches() {
+        println!(
+            "  Patch: chip_id=0x{:04X}, {} bytes, SVN Version={:08X}",
+            p.chip_id(),
+            p.contents().len(),
+            p.svn_version()
+        )
+    }
+}
+
+struct SimpleClient {
+    client: reqwest::Client,
+}
+
+impl SimpleClient {
+    fn new() -> Self {
+        Self {
+            client: reqwest::Client::new(),
+        }
+    }
+
+    async fn get(&self, url: &str) -> anyhow::Result<Vec<u8>> {
+        let resp = self.client.get(url).send().await?;
+        if !resp.status().is_success() {
+            return Err(anyhow!("Bad status: {}", resp.status()));
+        }
+        let bytes = resp.bytes().await?;
+        Ok(bytes.as_ref().to_vec())
+    }
+}
diff --git a/rust/src/cli/mod.rs b/rust/src/cli/mod.rs
new file mode 100644
index 0000000..2648e12
--- /dev/null
+++ b/rust/src/cli/mod.rs
@@ -0,0 +1,17 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+pub(crate) mod firmware;
+
+pub(crate) mod usb;
diff --git a/rust/examples/usb_probe.rs b/rust/src/cli/usb/mod.rs
similarity index 97%
rename from rust/examples/usb_probe.rs
rename to rust/src/cli/usb/mod.rs
index 3ba3b61..7adbd75 100644
--- a/rust/examples/usb_probe.rs
+++ b/rust/src/cli/usb/mod.rs
@@ -23,7 +23,6 @@
 //! whether it is a Bluetooth device that uses a non-standard Class, or some other
 //! type of device (there's no way to tell).
 
-use clap::Parser as _;
 use itertools::Itertools as _;
 use owo_colors::{OwoColorize, Style};
 use rusb::{Device, DeviceDescriptor, Direction, TransferType, UsbContext};
@@ -31,15 +30,12 @@ use std::{
     collections::{HashMap, HashSet},
     time::Duration,
 };
-
 const USB_DEVICE_CLASS_DEVICE: u8 = 0x00;
 const USB_DEVICE_CLASS_WIRELESS_CONTROLLER: u8 = 0xE0;
 const USB_DEVICE_SUBCLASS_RF_CONTROLLER: u8 = 0x01;
 const USB_DEVICE_PROTOCOL_BLUETOOTH_PRIMARY_CONTROLLER: u8 = 0x01;
 
-fn main() -> anyhow::Result<()> {
-    let cli = Cli::parse();
-
+pub(crate) fn probe(verbose: bool) -> anyhow::Result<()> {
     let mut bt_dev_count = 0;
     let mut device_serials_by_id: HashMap<(u16, u16), HashSet<String>> = HashMap::new();
     for device in rusb::devices()?.iter() {
@@ -159,7 +155,7 @@ fn main() -> anyhow::Result<()> {
             println!("{:26}{}", "  Product:".green(), p);
         }
 
-        if cli.verbose {
+        if verbose {
             print_device_details(&device, &device_desc)?;
         }
 
@@ -332,11 +328,3 @@ impl From<&DeviceDescriptor> for ClassInfo {
         )
     }
 }
-
-#[derive(clap::Parser)]
-#[command(author, version, about, long_about = None)]
-struct Cli {
-    /// Show additional info for each USB device
-    #[arg(long, default_value_t = false)]
-    verbose: bool,
-}
diff --git a/rust/src/internal/drivers/mod.rs b/rust/src/internal/drivers/mod.rs
new file mode 100644
index 0000000..5e72c59
--- /dev/null
+++ b/rust/src/internal/drivers/mod.rs
@@ -0,0 +1,17 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! Device drivers
+
+pub(crate) mod rtk;
diff --git a/rust/src/internal/drivers/rtk.rs b/rust/src/internal/drivers/rtk.rs
new file mode 100644
index 0000000..2d4e685
--- /dev/null
+++ b/rust/src/internal/drivers/rtk.rs
@@ -0,0 +1,253 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! Drivers for Realtek controllers
+
+use nom::{bytes, combinator, error, multi, number, sequence};
+
+/// Realtek firmware file contents
+pub struct Firmware {
+    version: u32,
+    project_id: u8,
+    patches: Vec<Patch>,
+}
+
+impl Firmware {
+    /// Parse a `*_fw.bin` file
+    pub fn parse(input: &[u8]) -> Result<Self, nom::Err<error::Error<&[u8]>>> {
+        let extension_sig = [0x51, 0x04, 0xFD, 0x77];
+
+        let (_rem, (_tag, fw_version, patch_count, payload)) =
+            combinator::all_consuming(combinator::map_parser(
+                // ignore the sig suffix
+                sequence::terminated(
+                    bytes::complete::take(
+                        // underflow will show up as parse failure
+                        input.len().saturating_sub(extension_sig.len()),
+                    ),
+                    bytes::complete::tag(extension_sig.as_slice()),
+                ),
+                sequence::tuple((
+                    bytes::complete::tag(b"Realtech"),
+                    // version
+                    number::complete::le_u32,
+                    // patch count
+                    combinator::map(number::complete::le_u16, |c| c as usize),
+                    // everything else except suffix
+                    combinator::rest,
+                )),
+            ))(input)?;
+
+        // ignore remaining input, since patch offsets are relative to the complete input
+        let (_rem, (chip_ids, patch_lengths, patch_offsets)) = sequence::tuple((
+            // chip id
+            multi::many_m_n(patch_count, patch_count, number::complete::le_u16),
+            // patch length
+            multi::many_m_n(patch_count, patch_count, number::complete::le_u16),
+            // patch offset
+            multi::many_m_n(patch_count, patch_count, number::complete::le_u32),
+        ))(payload)?;
+
+        let patches = chip_ids
+            .into_iter()
+            .zip(patch_lengths.into_iter())
+            .zip(patch_offsets.into_iter())
+            .map(|((chip_id, patch_length), patch_offset)| {
+                combinator::map(
+                    sequence::preceded(
+                        bytes::complete::take(patch_offset),
+                        // ignore trailing 4-byte suffix
+                        sequence::terminated(
+                            // patch including svn version, but not suffix
+                            combinator::consumed(sequence::preceded(
+                                // patch before svn version or version suffix
+                                // prefix length underflow will show up as parse failure
+                                bytes::complete::take(patch_length.saturating_sub(8)),
+                                // svn version
+                                number::complete::le_u32,
+                            )),
+                            // dummy suffix, overwritten with firmware version
+                            bytes::complete::take(4_usize),
+                        ),
+                    ),
+                    |(patch_contents_before_version, svn_version): (&[u8], u32)| {
+                        let mut contents = patch_contents_before_version.to_vec();
+                        // replace what would have been the trailing dummy suffix with fw version
+                        contents.extend_from_slice(&fw_version.to_le_bytes());
+
+                        Patch {
+                            contents,
+                            svn_version,
+                            chip_id,
+                        }
+                    },
+                )(input)
+                .map(|(_rem, output)| output)
+            })
+            .collect::<Result<Vec<_>, _>>()?;
+
+        // look for project id from the end
+        let mut offset = payload.len();
+        let mut project_id: Option<u8> = None;
+        while offset >= 2 {
+            // Won't panic, since offset >= 2
+            let chunk = &payload[offset - 2..offset];
+            let length: usize = chunk[0].into();
+            let opcode = chunk[1];
+            offset -= 2;
+
+            if opcode == 0xFF {
+                break;
+            }
+            if length == 0 {
+                // report what nom likely would have done, if nom was good at parsing backwards
+                return Err(nom::Err::Error(error::Error::new(
+                    chunk,
+                    error::ErrorKind::Verify,
+                )));
+            }
+            if opcode == 0 && length == 1 {
+                project_id = offset
+                    .checked_sub(1)
+                    .and_then(|index| payload.get(index))
+                    .copied();
+                break;
+            }
+
+            offset -= length;
+        }
+
+        match project_id {
+            Some(project_id) => Ok(Firmware {
+                project_id,
+                version: fw_version,
+                patches,
+            }),
+            None => {
+                // we ran out of file without finding a project id
+                Err(nom::Err::Error(error::Error::new(
+                    payload,
+                    error::ErrorKind::Eof,
+                )))
+            }
+        }
+    }
+
+    /// Patch version
+    pub fn version(&self) -> u32 {
+        self.version
+    }
+
+    /// Project id
+    pub fn project_id(&self) -> u8 {
+        self.project_id
+    }
+
+    /// Patches
+    pub fn patches(&self) -> &[Patch] {
+        &self.patches
+    }
+}
+
+/// Patch in a [Firmware}
+pub struct Patch {
+    chip_id: u16,
+    contents: Vec<u8>,
+    svn_version: u32,
+}
+
+impl Patch {
+    /// Chip id
+    pub fn chip_id(&self) -> u16 {
+        self.chip_id
+    }
+    /// Contents of the patch, including the 4-byte firmware version suffix
+    pub fn contents(&self) -> &[u8] {
+        &self.contents
+    }
+    /// SVN version
+    pub fn svn_version(&self) -> u32 {
+        self.svn_version
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use anyhow::anyhow;
+    use std::{fs, io, path};
+
+    #[test]
+    fn parse_firmware_rtl8723b() -> anyhow::Result<()> {
+        let fw = Firmware::parse(&firmware_contents("rtl8723b_fw_structure.bin")?)
+            .map_err(|e| anyhow!("{:?}", e))?;
+
+        let fw_version = 0x0E2F9F73;
+        assert_eq!(fw_version, fw.version());
+        assert_eq!(0x0001, fw.project_id());
+        assert_eq!(
+            vec![(0x0001, 0x00002BBF, 22368,), (0x0002, 0x00002BBF, 22496,),],
+            patch_summaries(fw, fw_version)
+        );
+
+        Ok(())
+    }
+
+    #[test]
+    fn parse_firmware_rtl8761bu() -> anyhow::Result<()> {
+        let fw = Firmware::parse(&firmware_contents("rtl8761bu_fw_structure.bin")?)
+            .map_err(|e| anyhow!("{:?}", e))?;
+
+        let fw_version = 0xDFC6D922;
+        assert_eq!(fw_version, fw.version());
+        assert_eq!(0x000E, fw.project_id());
+        assert_eq!(
+            vec![(0x0001, 0x00005060, 14048,), (0x0002, 0xD6D525A4, 30204,),],
+            patch_summaries(fw, fw_version)
+        );
+
+        Ok(())
+    }
+
+    fn firmware_contents(filename: &str) -> io::Result<Vec<u8>> {
+        fs::read(
+            path::PathBuf::from(env!("CARGO_MANIFEST_DIR"))
+                .join("resources/test/firmware/realtek")
+                .join(filename),
+        )
+    }
+
+    /// Return a tuple of (chip id, svn version, contents len, contents sha256)
+    fn patch_summaries(fw: Firmware, fw_version: u32) -> Vec<(u16, u32, usize)> {
+        fw.patches()
+            .iter()
+            .map(|p| {
+                let contents = p.contents();
+                let mut dummy_contents = dummy_contents(contents.len());
+                dummy_contents.extend_from_slice(&p.svn_version().to_le_bytes());
+                dummy_contents.extend_from_slice(&fw_version.to_le_bytes());
+                assert_eq!(&dummy_contents, contents);
+                (p.chip_id(), p.svn_version(), contents.len())
+            })
+            .collect::<Vec<_>>()
+    }
+
+    fn dummy_contents(len: usize) -> Vec<u8> {
+        let mut vec = (len as u32).to_le_bytes().as_slice().repeat(len / 4 + 1);
+        assert!(vec.len() >= len);
+        // leave room for svn version and firmware version
+        vec.truncate(len - 8);
+        vec
+    }
+}
diff --git a/rust/src/internal/mod.rs b/rust/src/internal/mod.rs
new file mode 100644
index 0000000..f474c2d
--- /dev/null
+++ b/rust/src/internal/mod.rs
@@ -0,0 +1,20 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! It's not clear where to put Rust code that isn't simply a wrapper around Python. Until we have
+//! a good answer for what to do there, the idea is to put it in this (non-public) module, and
+//! `pub use` it into the relevant areas of the `wrapper` module so that it's still easy for users
+//! to discover.
+
+pub(crate) mod drivers;
diff --git a/rust/src/lib.rs b/rust/src/lib.rs
index 73001e6..2bcb398 100644
--- a/rust/src/lib.rs
+++ b/rust/src/lib.rs
@@ -29,3 +29,5 @@
 pub mod wrapper;
 
 pub mod adv;
+
+pub(crate) mod internal;
diff --git a/rust/src/main.rs b/rust/src/main.rs
new file mode 100644
index 0000000..f8401e9
--- /dev/null
+++ b/rust/src/main.rs
@@ -0,0 +1,179 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! CLI tools for Bumble
+
+#![deny(missing_docs, unsafe_code)]
+
+use bumble::wrapper::logging::{bumble_env_logging_level, py_logging_basic_config};
+use clap::Parser as _;
+use pyo3::PyResult;
+use std::{fmt, path};
+
+mod cli;
+
+#[pyo3_asyncio::tokio::main]
+async fn main() -> PyResult<()> {
+    env_logger::builder()
+        .filter_level(log::LevelFilter::Info)
+        .init();
+
+    py_logging_basic_config(bumble_env_logging_level("INFO"))?;
+
+    let cli: Cli = Cli::parse();
+
+    match cli.subcommand {
+        Subcommand::Firmware { subcommand: fw } => match fw {
+            Firmware::Realtek { subcommand: rtk } => match rtk {
+                Realtek::Download(dl) => {
+                    cli::firmware::rtk::download(dl).await?;
+                }
+                Realtek::Drop { transport } => cli::firmware::rtk::drop(&transport).await?,
+                Realtek::Info { transport, force } => {
+                    cli::firmware::rtk::info(&transport, force).await?;
+                }
+                Realtek::Load { transport, force } => {
+                    cli::firmware::rtk::load(&transport, force).await?
+                }
+                Realtek::Parse { firmware_path } => cli::firmware::rtk::parse(&firmware_path)?,
+            },
+        },
+        Subcommand::Usb { subcommand } => match subcommand {
+            Usb::Probe(probe) => cli::usb::probe(probe.verbose)?,
+        },
+    }
+
+    Ok(())
+}
+
+#[derive(clap::Parser)]
+struct Cli {
+    #[clap(subcommand)]
+    subcommand: Subcommand,
+}
+
+#[derive(clap::Subcommand, Debug, Clone)]
+enum Subcommand {
+    /// Manage device firmware
+    Firmware {
+        #[clap(subcommand)]
+        subcommand: Firmware,
+    },
+    /// USB operations
+    Usb {
+        #[clap(subcommand)]
+        subcommand: Usb,
+    },
+}
+
+#[derive(clap::Subcommand, Debug, Clone)]
+enum Firmware {
+    /// Manage Realtek chipset firmware
+    Realtek {
+        #[clap(subcommand)]
+        subcommand: Realtek,
+    },
+}
+
+#[derive(clap::Subcommand, Debug, Clone)]
+
+enum Realtek {
+    /// Download Realtek firmware
+    Download(Download),
+    /// Drop firmware from a USB device
+    Drop {
+        /// Bumble transport spec. Must be for a USB device.
+        ///
+        /// <https://google.github.io/bumble/transports/index.html>
+        #[arg(long)]
+        transport: String,
+    },
+    /// Show driver info for a USB device
+    Info {
+        /// Bumble transport spec. Must be for a USB device.
+        ///
+        /// <https://google.github.io/bumble/transports/index.html>
+        #[arg(long)]
+        transport: String,
+        /// Try to resolve driver info even if USB info is not available, or if the USB
+        /// (vendor,product) tuple is not in the list of known compatible RTK USB dongles.
+        #[arg(long, default_value_t = false)]
+        force: bool,
+    },
+    /// Load firmware onto a USB device
+    Load {
+        /// Bumble transport spec. Must be for a USB device.
+        ///
+        /// <https://google.github.io/bumble/transports/index.html>
+        #[arg(long)]
+        transport: String,
+        /// Load firmware even if the USB info doesn't match.
+        #[arg(long, default_value_t = false)]
+        force: bool,
+    },
+    /// Parse a firmware file
+    Parse {
+        /// Firmware file to parse
+        firmware_path: path::PathBuf,
+    },
+}
+
+#[derive(clap::Args, Debug, Clone)]
+struct Download {
+    /// Directory to download to. Defaults to an OS-specific path specific to the Bumble tool.
+    #[arg(long)]
+    output_dir: Option<path::PathBuf>,
+    /// Source to download from
+    #[arg(long, default_value_t = Source::LinuxKernel)]
+    source: Source,
+    /// Only download a single image
+    #[arg(long, value_name = "base name")]
+    single: Option<String>,
+    /// Overwrite existing files
+    #[arg(long, default_value_t = false)]
+    overwrite: bool,
+    /// Don't print the parse results for the downloaded file names
+    #[arg(long)]
+    no_parse: bool,
+}
+
+#[derive(Debug, Clone, clap::ValueEnum)]
+enum Source {
+    LinuxKernel,
+    RealtekOpensource,
+    LinuxFromScratch,
+}
+
+impl fmt::Display for Source {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            Source::LinuxKernel => write!(f, "linux-kernel"),
+            Source::RealtekOpensource => write!(f, "realtek-opensource"),
+            Source::LinuxFromScratch => write!(f, "linux-from-scratch"),
+        }
+    }
+}
+
+#[derive(clap::Subcommand, Debug, Clone)]
+enum Usb {
+    /// Probe the USB bus for Bluetooth devices
+    Probe(Probe),
+}
+
+#[derive(clap::Args, Debug, Clone)]
+struct Probe {
+    /// Show additional info for each USB device
+    #[arg(long, default_value_t = false)]
+    verbose: bool,
+}
diff --git a/rust/src/wrapper/device.rs b/rust/src/wrapper/device.rs
index d635754..11770a3 100644
--- a/rust/src/wrapper/device.rs
+++ b/rust/src/wrapper/device.rs
@@ -20,12 +20,17 @@ use crate::{
         core::AdvertisingData,
         gatt_client::{ProfileServiceProxy, ServiceProxy},
         hci::Address,
+        host::Host,
         transport::{Sink, Source},
-        ClosureCallback,
+        ClosureCallback, PyObjectExt,
     },
 };
-use pyo3::types::PyDict;
-use pyo3::{intern, types::PyModule, PyObject, PyResult, Python, ToPyObject};
+use pyo3::{
+    intern,
+    types::{PyDict, PyModule},
+    PyObject, PyResult, Python, ToPyObject,
+};
+use pyo3_asyncio::tokio::into_future;
 use std::path;
 
 /// A device that can send/receive HCI frames.
@@ -65,7 +70,7 @@ impl Device {
         Python::with_gil(|py| {
             self.0
                 .call_method0(py, intern!(py, "power_on"))
-                .and_then(|coroutine| pyo3_asyncio::tokio::into_future(coroutine.as_ref(py)))
+                .and_then(|coroutine| into_future(coroutine.as_ref(py)))
         })?
         .await
         .map(|_| ())
@@ -76,7 +81,7 @@ impl Device {
         Python::with_gil(|py| {
             self.0
                 .call_method1(py, intern!(py, "connect"), (peer_addr,))
-                .and_then(|coroutine| pyo3_asyncio::tokio::into_future(coroutine.as_ref(py)))
+                .and_then(|coroutine| into_future(coroutine.as_ref(py)))
         })?
         .await
         .map(Connection)
@@ -89,7 +94,7 @@ impl Device {
             kwargs.set_item("filter_duplicates", filter_duplicates)?;
             self.0
                 .call_method(py, intern!(py, "start_scanning"), (), Some(kwargs))
-                .and_then(|coroutine| pyo3_asyncio::tokio::into_future(coroutine.as_ref(py)))
+                .and_then(|coroutine| into_future(coroutine.as_ref(py)))
         })?
         .await
         .map(|_| ())
@@ -123,6 +128,15 @@ impl Device {
         .map(|_| ())
     }
 
+    /// Returns the host used by the device, if any
+    pub fn host(&mut self) -> PyResult<Option<Host>> {
+        Python::with_gil(|py| {
+            self.0
+                .getattr(py, intern!(py, "host"))
+                .map(|obj| obj.into_option(Host::from))
+        })
+    }
+
     /// Start advertising the data set with [Device.set_advertisement].
     pub async fn start_advertising(&mut self, auto_restart: bool) -> PyResult<()> {
         Python::with_gil(|py| {
@@ -131,7 +145,7 @@ impl Device {
 
             self.0
                 .call_method(py, intern!(py, "start_advertising"), (), Some(kwargs))
-                .and_then(|coroutine| pyo3_asyncio::tokio::into_future(coroutine.as_ref(py)))
+                .and_then(|coroutine| into_future(coroutine.as_ref(py)))
         })?
         .await
         .map(|_| ())
@@ -142,7 +156,7 @@ impl Device {
         Python::with_gil(|py| {
             self.0
                 .call_method0(py, intern!(py, "stop_advertising"))
-                .and_then(|coroutine| pyo3_asyncio::tokio::into_future(coroutine.as_ref(py)))
+                .and_then(|coroutine| into_future(coroutine.as_ref(py)))
         })?
         .await
         .map(|_| ())
@@ -173,7 +187,7 @@ impl Peer {
         Python::with_gil(|py| {
             self.0
                 .call_method0(py, intern!(py, "discover_services"))
-                .and_then(|coroutine| pyo3_asyncio::tokio::into_future(coroutine.as_ref(py)))
+                .and_then(|coroutine| into_future(coroutine.as_ref(py)))
         })?
         .await
         .and_then(|list| {
@@ -207,13 +221,7 @@ impl Peer {
             let class = module.getattr(P::PROXY_CLASS_NAME)?;
             self.0
                 .call_method1(py, intern!(py, "create_service_proxy"), (class,))
-                .map(|obj| {
-                    if obj.is_none(py) {
-                        None
-                    } else {
-                        Some(P::wrap(obj))
-                    }
-                })
+                .map(|obj| obj.into_option(P::wrap))
         })
     }
 }
diff --git a/rust/src/wrapper/drivers/mod.rs b/rust/src/wrapper/drivers/mod.rs
new file mode 100644
index 0000000..ff38ac1
--- /dev/null
+++ b/rust/src/wrapper/drivers/mod.rs
@@ -0,0 +1,17 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! Device drivers
+
+pub mod rtk;
diff --git a/rust/src/wrapper/drivers/rtk.rs b/rust/src/wrapper/drivers/rtk.rs
new file mode 100644
index 0000000..1f629d1
--- /dev/null
+++ b/rust/src/wrapper/drivers/rtk.rs
@@ -0,0 +1,141 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! Drivers for Realtek controllers
+
+use crate::wrapper::{host::Host, PyObjectExt};
+use pyo3::{intern, types::PyModule, PyObject, PyResult, Python, ToPyObject};
+use pyo3_asyncio::tokio::into_future;
+
+pub use crate::internal::drivers::rtk::{Firmware, Patch};
+
+/// Driver for a Realtek controller
+pub struct Driver(PyObject);
+
+impl Driver {
+    /// Locate the driver for the provided host.
+    pub async fn for_host(host: &Host, force: bool) -> PyResult<Option<Self>> {
+        Python::with_gil(|py| {
+            PyModule::import(py, intern!(py, "bumble.drivers.rtk"))?
+                .getattr(intern!(py, "Driver"))?
+                .call_method1(intern!(py, "for_host"), (&host.obj, force))
+                .and_then(into_future)
+        })?
+        .await
+        .map(|obj| obj.into_option(Self))
+    }
+
+    /// Check if the host has a known driver.
+    pub async fn check(host: &Host) -> PyResult<bool> {
+        Python::with_gil(|py| {
+            PyModule::import(py, intern!(py, "bumble.drivers.rtk"))?
+                .getattr(intern!(py, "Driver"))?
+                .call_method1(intern!(py, "check"), (&host.obj,))
+                .and_then(|obj| obj.extract::<bool>())
+        })
+    }
+
+    /// Find the [DriverInfo] for the host, if one matches
+    pub async fn driver_info_for_host(host: &Host) -> PyResult<Option<DriverInfo>> {
+        Python::with_gil(|py| {
+            PyModule::import(py, intern!(py, "bumble.drivers.rtk"))?
+                .getattr(intern!(py, "Driver"))?
+                .call_method1(intern!(py, "driver_info_for_host"), (&host.obj,))
+                .and_then(into_future)
+        })?
+        .await
+        .map(|obj| obj.into_option(DriverInfo))
+    }
+
+    /// Send a command to the device to drop firmware
+    pub async fn drop_firmware(host: &mut Host) -> PyResult<()> {
+        Python::with_gil(|py| {
+            PyModule::import(py, intern!(py, "bumble.drivers.rtk"))?
+                .getattr(intern!(py, "Driver"))?
+                .call_method1(intern!(py, "drop_firmware"), (&host.obj,))
+                .and_then(into_future)
+        })?
+        .await
+        .map(|_| ())
+    }
+
+    /// Load firmware onto the device.
+    pub async fn download_firmware(&mut self) -> PyResult<()> {
+        Python::with_gil(|py| {
+            self.0
+                .call_method0(py, intern!(py, "download_firmware"))
+                .and_then(|coroutine| into_future(coroutine.as_ref(py)))
+        })?
+        .await
+        .map(|_| ())
+    }
+}
+
+/// Metadata about a known driver & applicable device
+pub struct DriverInfo(PyObject);
+
+impl DriverInfo {
+    /// Returns a list of all drivers that Bumble knows how to handle.
+    pub fn all_drivers() -> PyResult<Vec<DriverInfo>> {
+        Python::with_gil(|py| {
+            PyModule::import(py, intern!(py, "bumble.drivers.rtk"))?
+                .getattr(intern!(py, "Driver"))?
+                .getattr(intern!(py, "DRIVER_INFOS"))?
+                .iter()?
+                .map(|r| r.map(|h| DriverInfo(h.to_object(py))))
+                .collect::<PyResult<Vec<_>>>()
+        })
+    }
+
+    /// The firmware file name to load from the filesystem, e.g. `foo_fw.bin`.
+    pub fn firmware_name(&self) -> PyResult<String> {
+        Python::with_gil(|py| {
+            self.0
+                .getattr(py, intern!(py, "fw_name"))?
+                .as_ref(py)
+                .extract::<String>()
+        })
+    }
+
+    /// The config file name, if any, to load from the filesystem, e.g. `foo_config.bin`.
+    pub fn config_name(&self) -> PyResult<Option<String>> {
+        Python::with_gil(|py| {
+            let obj = self.0.getattr(py, intern!(py, "config_name"))?;
+            let handle = obj.as_ref(py);
+
+            if handle.is_none() {
+                Ok(None)
+            } else {
+                handle
+                    .extract::<String>()
+                    .map(|s| if s.is_empty() { None } else { Some(s) })
+            }
+        })
+    }
+
+    /// Whether or not config is required.
+    pub fn config_needed(&self) -> PyResult<bool> {
+        Python::with_gil(|py| {
+            self.0
+                .getattr(py, intern!(py, "config_needed"))?
+                .as_ref(py)
+                .extract::<bool>()
+        })
+    }
+
+    /// ROM id
+    pub fn rom(&self) -> PyResult<u32> {
+        Python::with_gil(|py| self.0.getattr(py, intern!(py, "rom"))?.as_ref(py).extract())
+    }
+}
diff --git a/rust/src/wrapper/host.rs b/rust/src/wrapper/host.rs
new file mode 100644
index 0000000..ab81450
--- /dev/null
+++ b/rust/src/wrapper/host.rs
@@ -0,0 +1,71 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! Host-side types
+
+use crate::wrapper::transport::{Sink, Source};
+use pyo3::{intern, prelude::PyModule, types::PyDict, PyObject, PyResult, Python};
+
+/// Host HCI commands
+pub struct Host {
+    pub(crate) obj: PyObject,
+}
+
+impl Host {
+    /// Create a Host that wraps the provided obj
+    pub(crate) fn from(obj: PyObject) -> Self {
+        Self { obj }
+    }
+
+    /// Create a new Host
+    pub fn new(source: Source, sink: Sink) -> PyResult<Self> {
+        Python::with_gil(|py| {
+            PyModule::import(py, intern!(py, "bumble.host"))?
+                .getattr(intern!(py, "Host"))?
+                .call((source.0, sink.0), None)
+                .map(|any| Self { obj: any.into() })
+        })
+    }
+
+    /// Send a reset command and perform other reset tasks.
+    pub async fn reset(&mut self, driver_factory: DriverFactory) -> PyResult<()> {
+        Python::with_gil(|py| {
+            let kwargs = match driver_factory {
+                DriverFactory::None => {
+                    let kw = PyDict::new(py);
+                    kw.set_item("driver_factory", py.None())?;
+                    Some(kw)
+                }
+                DriverFactory::Auto => {
+                    // leave the default in place
+                    None
+                }
+            };
+            self.obj
+                .call_method(py, intern!(py, "reset"), (), kwargs)
+                .and_then(|coroutine| pyo3_asyncio::tokio::into_future(coroutine.as_ref(py)))
+        })?
+        .await
+        .map(|_| ())
+    }
+}
+
+/// Driver factory to use when initializing a host
+#[derive(Debug, Clone)]
+pub enum DriverFactory {
+    /// Do not load drivers
+    None,
+    /// Load appropriate driver, if any is found
+    Auto,
+}
diff --git a/rust/src/wrapper/mod.rs b/rust/src/wrapper/mod.rs
index 2ab71c3..cb0730b 100644
--- a/rust/src/wrapper/mod.rs
+++ b/rust/src/wrapper/mod.rs
@@ -31,14 +31,17 @@ pub use pyo3_asyncio;
 pub mod assigned_numbers;
 pub mod core;
 pub mod device;
+
+pub mod drivers;
 pub mod gatt_client;
 pub mod hci;
+pub mod host;
 pub mod logging;
 pub mod profile;
 pub mod transport;
 
 /// Convenience extensions to [PyObject]
-pub trait PyObjectExt {
+pub trait PyObjectExt: Sized {
     /// Get a GIL-bound reference
     fn gil_ref<'py>(&'py self, py: Python<'py>) -> &'py PyAny;
 
@@ -49,6 +52,17 @@ pub trait PyObjectExt {
     {
         Python::with_gil(|py| self.gil_ref(py).extract::<T>())
     }
+
+    /// If the Python object is a Python `None`, return a Rust `None`, otherwise `Some` with the mapped type
+    fn into_option<T>(self, map_obj: impl Fn(Self) -> T) -> Option<T> {
+        Python::with_gil(|py| {
+            if self.gil_ref(py).is_none() {
+                None
+            } else {
+                Some(map_obj(self))
+            }
+        })
+    }
 }
 
 impl PyObjectExt for PyObject {
diff --git a/rust/src/wrapper/profile.rs b/rust/src/wrapper/profile.rs
index 854ba80..fc473ff 100644
--- a/rust/src/wrapper/profile.rs
+++ b/rust/src/wrapper/profile.rs
@@ -14,7 +14,10 @@
 
 //! GATT profiles
 
-use crate::wrapper::gatt_client::{CharacteristicProxy, ProfileServiceProxy};
+use crate::wrapper::{
+    gatt_client::{CharacteristicProxy, ProfileServiceProxy},
+    PyObjectExt,
+};
 use pyo3::{intern, PyObject, PyResult, Python};
 
 /// Exposes the battery GATT service
@@ -26,13 +29,7 @@ impl BatteryServiceProxy {
         Python::with_gil(|py| {
             self.0
                 .getattr(py, intern!(py, "battery_level"))
-                .map(|level| {
-                    if level.is_none(py) {
-                        None
-                    } else {
-                        Some(CharacteristicProxy(level))
-                    }
-                })
+                .map(|level| level.into_option(CharacteristicProxy))
         })
     }
 }
diff --git a/setup.cfg b/setup.cfg
index 53c28fd..74a90e0 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -40,6 +40,7 @@ install_requires =
     humanize >= 4.6.0; platform_system!='Emscripten'
     libusb1 >= 2.0.1; platform_system!='Emscripten'
     libusb-package == 1.0.26.1; platform_system!='Emscripten'
+    platformdirs == 3.10.0; platform_system!='Emscripten'
     prompt_toolkit >= 3.0.16; platform_system!='Emscripten'
     prettytable >= 3.6.0; platform_system!='Emscripten'
     protobuf >= 3.12.4; platform_system!='Emscripten'
diff --git a/tools/rtk_fw_download.py b/tools/rtk_fw_download.py
index b027141..89c49b2 100644
--- a/tools/rtk_fw_download.py
+++ b/tools/rtk_fw_download.py
@@ -67,8 +67,9 @@ def download_file(base_url, name, remove_suffix):
 @click.command
 @click.option(
     "--output-dir",
-    default=".",
-    help="Output directory where the files will be saved",
+    default="",
+    help="Output directory where the files will be saved. Defaults to the OS-specific"
+    "app data dir, which the driver will check when trying to find firmware",
     show_default=True,
 )
 @click.option(
@@ -84,7 +85,10 @@ def main(output_dir, source, single, force, parse):
     """Download RTK firmware images and configs."""
 
     # Check that the output dir exists
-    output_dir = pathlib.Path(output_dir)
+    if output_dir == '':
+        output_dir = rtk.rtk_firmware_dir()
+    else:
+        output_dir = pathlib.Path(output_dir)
     if not output_dir.is_dir():
         print("Output dir does not exist or is not a directory")
         return
diff --git a/tools/rtk_util.py b/tools/rtk_util.py
index 7452915..35afd92 100644
--- a/tools/rtk_util.py
+++ b/tools/rtk_util.py
@@ -61,9 +61,8 @@ async def do_load(usb_transport, force):
         # Get the driver.
         driver = await rtk.Driver.for_host(host, force)
         if driver is None:
-            if not force:
-                print("Firmware already loaded or no supported driver for this device.")
-                return
+            print("Firmware already loaded or no supported driver for this device.")
+            return
 
         await driver.download_firmware()