From 587857bbdda84ef8839b7734d46435eab7014375 Mon Sep 17 00:00:00 2001
From: James Hugman <james@hugman.tv>
Date: Mon, 22 Jun 2026 17:05:45 +0100
Subject: [PATCH 1/5] Add dart bindings, using uniffi-dart

---
 .changeset/uniffi-dart-bindings.md |   5 +
 Cargo.lock                         | 352 ++++++++++++-----------------
 livekit-uniffi/Cargo.toml          |  18 +-
 livekit-uniffi/Makefile.toml       |  21 +-
 livekit-uniffi/bindgen-dart.rs     |  65 ++++++
 5 files changed, 253 insertions(+), 208 deletions(-)
 create mode 100644 .changeset/uniffi-dart-bindings.md
 create mode 100644 livekit-uniffi/bindgen-dart.rs

diff --git a/.changeset/uniffi-dart-bindings.md b/.changeset/uniffi-dart-bindings.md
new file mode 100644
index 000000000..75ec6b146
--- /dev/null
+++ b/.changeset/uniffi-dart-bindings.md
@@ -0,0 +1,5 @@
+---
+livekit-uniffi: minor
+---
+
+Add a Dart bindings target. Bumps the crate's UniFFI dependency from 0.30 to 0.31 to match the bindgen.
diff --git a/Cargo.lock b/Cargo.lock
index 2aed71a33..d6430cf0b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -220,7 +220,7 @@ version = "1.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "40c48f72fd53cd289104fc64099abca73db4166ad86ea0b4341abe65af83dadc"
 dependencies = [
- "windows-sys 0.61.2",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -231,7 +231,7 @@ checksum = "291e6a250ff86cd4a820112fb8898808a366d8f9f58ce16d1f538353ad55747d"
 dependencies = [
  "anstyle",
  "once_cell_polyfill",
- "windows-sys 0.61.2",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -335,9 +335,9 @@ dependencies = [
 
 [[package]]
 name = "askama"
-version = "0.13.1"
+version = "0.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5d4744ed2eef2645831b441d8f5459689ade2ab27c854488fbab1fbe94fce1a7"
+checksum = "f75363874b771be265f4ffe307ca705ef6f3baa19011c149da8674a87f1b75c4"
 dependencies = [
  "askama_derive",
  "itoa",
@@ -348,9 +348,9 @@ dependencies = [
 
 [[package]]
 name = "askama_derive"
-version = "0.13.1"
+version = "0.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d661e0f57be36a5c14c48f78d09011e67e0cb618f269cca9f2fd8d15b68c46ac"
+checksum = "129397200fe83088e8a68407a8e2b1f826cf0086b21ccdb866a722c8bcd3a94f"
 dependencies = [
  "askama_parser",
  "basic-toml",
@@ -365,9 +365,9 @@ dependencies = [
 
 [[package]]
 name = "askama_parser"
-version = "0.13.0"
+version = "0.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cf315ce6524c857bb129ff794935cf6d42c82a6cff60526fe2a63593de4d0d4f"
+checksum = "d6ab5630b3d5eaf232620167977f95eb51f3432fc76852328774afbd242d4358"
 dependencies = [
  "memchr",
  "serde",
@@ -398,6 +398,19 @@ dependencies = [
  "pin-project-lite",
 ]
 
+[[package]]
+name = "async-compat"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a1ba85bc55464dcbf728b56d97e119d673f4cf9062be330a9a26f3acf504a590"
+dependencies = [
+ "futures-core",
+ "futures-io",
+ "once_cell",
+ "pin-project-lite",
+ "tokio",
+]
+
 [[package]]
 name = "async-executor"
 version = "1.14.0"
@@ -990,6 +1003,20 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "cargo_metadata"
+version = "0.18.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2d886547e41f740c616ae73108f6eb70afe6d940c7bc697cb30f13daec073037"
+dependencies = [
+ "camino",
+ "cargo-platform",
+ "semver",
+ "serde",
+ "serde_json",
+ "thiserror 1.0.69",
+]
+
 [[package]]
 name = "cargo_metadata"
 version = "0.19.2"
@@ -1207,7 +1234,7 @@ version = "3.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "faf9468729b8cbcea668e36183cb69d317348c2e08e994829fb56ebfdfbaac34"
 dependencies = [
- "windows-sys 0.61.2",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -2150,7 +2177,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "39cab71617ae0d63f51a36d69f866391735b51691dbda63cf6f96d042b63efeb"
 dependencies = [
  "libc",
- "windows-sys 0.61.2",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -2533,6 +2560,28 @@ dependencies = [
  "slab",
 ]
 
+[[package]]
+name = "genco"
+version = "0.17.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a35958104272e516c2a5f66a9d82fba4784d2b585fc1e2358b8f96e15d342995"
+dependencies = [
+ "genco-macros",
+ "relative-path",
+ "smallvec",
+]
+
+[[package]]
+name = "genco-macros"
+version = "0.17.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "43eaff6bbc0b3a878361aced5ec6a2818ee7c541c5b33b5880dfa9a86c23e9e7"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.117",
+]
+
 [[package]]
 name = "generic-array"
 version = "0.14.9"
@@ -2575,24 +2624,11 @@ dependencies = [
  "cfg-if 1.0.4",
  "js-sys",
  "libc",
- "r-efi 5.3.0",
+ "r-efi",
  "wasip2",
  "wasm-bindgen",
 ]
 
-[[package]]
-name = "getrandom"
-version = "0.4.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0de51e6874e94e7bf76d726fc5d13ba782deca734ff60d5bb2fb2607c7406555"
-dependencies = [
- "cfg-if 1.0.4",
- "libc",
- "r-efi 6.0.0",
- "wasip2",
- "wasip3",
-]
-
 [[package]]
 name = "gif"
 version = "0.14.1"
@@ -2619,7 +2655,7 @@ dependencies = [
  "gobject-sys",
  "libc",
  "system-deps",
- "windows-sys 0.61.2",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -3111,7 +3147,7 @@ dependencies = [
  "libc",
  "percent-encoding",
  "pin-project-lite",
- "socket2 0.6.3",
+ "socket2 0.5.10",
  "tokio",
  "tower-service",
  "tracing",
@@ -3222,12 +3258,6 @@ dependencies = [
  "zerovec",
 ]
 
-[[package]]
-name = "id-arena"
-version = "2.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3d3067d79b975e8844ca9eb072e16b31c3c1c36928edf9c6789548c524d0d954"
-
 [[package]]
 name = "ident_case"
 version = "1.0.1"
@@ -3626,12 +3656,6 @@ version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "830d08ce1d1d941e6b30645f1a0eb5643013d835ce3779a5fc208261dbe10f55"
 
-[[package]]
-name = "leb128fmt"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09edd9e8b54e49e587e4f6295a7d29c3ea94d469cb40ab8ca70b288248a81db2"
-
 [[package]]
 name = "lebe"
 version = "0.5.3"
@@ -3959,12 +3983,14 @@ dependencies = [
 name = "livekit-uniffi"
 version = "0.1.1"
 dependencies = [
+ "camino",
  "livekit-api",
  "livekit-protocol",
  "log",
  "once_cell",
  "tokio",
  "uniffi",
+ "uniffi-dart",
 ]
 
 [[package]]
@@ -4584,7 +4610,7 @@ version = "0.50.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7957b9740744892f114936ab4a57b3f487491bbeafaf8083688b16841a4240e5"
 dependencies = [
- "windows-sys 0.61.2",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
@@ -5789,7 +5815,7 @@ dependencies = [
  "quinn-udp",
  "rustc-hash 2.1.1",
  "rustls",
- "socket2 0.6.3",
+ "socket2 0.5.10",
  "thiserror 2.0.18",
  "tokio",
  "tracing",
@@ -5826,7 +5852,7 @@ dependencies = [
  "cfg_aliases",
  "libc",
  "once_cell",
- "socket2 0.6.3",
+ "socket2 0.5.10",
  "tracing",
  "windows-sys 0.60.2",
 ]
@@ -5846,12 +5872,6 @@ version = "5.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "69cdb34c158ceb288df11e18b4bd39de994f6657d83847bdffdbd7f346754b0f"
 
-[[package]]
-name = "r-efi"
-version = "6.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f8dcc9c7d52a811697d2151c701e0d08956f92b0e24136cf4cf27b57a6a0d9bf"
-
 [[package]]
 name = "rand"
 version = "0.8.5"
@@ -6065,6 +6085,12 @@ version = "0.8.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dc897dd8d9e8bd1ed8cdad82b5966c3e0ecae09fb1907d58efaa013543185d0a"
 
+[[package]]
+name = "relative-path"
+version = "1.9.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ba39f3699c378cd8970968dcbff9c43159ea4cfbd88d43c00b22f2ef10a435d2"
+
 [[package]]
 name = "renderdoc-sys"
 version = "1.1.0"
@@ -6251,7 +6277,7 @@ dependencies = [
  "errno",
  "libc",
  "linux-raw-sys 0.12.1",
- "windows-sys 0.61.2",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -6664,9 +6690,9 @@ checksum = "e3a9fe34e3e7a50316060351f37187a3f546bce95496156754b601a5fa71b76e"
 
 [[package]]
 name = "siphasher"
-version = "0.3.11"
+version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "38b58827f4464d87d377d175e90bf58eb00fd8716ff0a62f80356b5e61555d0d"
+checksum = "8ee5873ec9cce0195efcb7a4e9507a04cd49aec9c83d0389df45b1ef7ba2e649"
 
 [[package]]
 name = "slab"
@@ -6795,7 +6821,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3a766e1110788c36f4fa1c2b71b387a7815aa65f88ce0229841826633d93723e"
 dependencies = [
  "libc",
- "windows-sys 0.61.2",
+ "windows-sys 0.60.2",
 ]
 
 [[package]]
@@ -6859,6 +6885,18 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "stringcase"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "04028eeb851ed08af6aba5caa29f2d59a13ed168cee4d6bd753aeefcf1d636b0"
+
+[[package]]
+name = "stringcase"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72abeda133c49d7bddece6c154728f83eec8172380c80ab7096da9487e20d27c"
+
 [[package]]
 name = "strsim"
 version = "0.10.0"
@@ -6962,10 +7000,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "32497e9a4c7b38532efcdebeef879707aa9f794296a4f0244f6f69e9bc8574bd"
 dependencies = [
  "fastrand 2.3.0",
- "getrandom 0.4.2",
+ "getrandom 0.3.4",
  "once_cell",
  "rustix 1.1.4",
- "windows-sys 0.61.2",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -7765,21 +7803,15 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b4ac048d71ede7ee76d585517add45da530660ef4390e49b098733c6e897f254"
 
-[[package]]
-name = "unicode-xid"
-version = "0.2.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ebc1c04c71510c7f702b52b7c350734c9ff1295c464a03335b00bb84fc54f853"
-
 [[package]]
 name = "uniffi"
-version = "0.30.0"
+version = "0.31.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c866f627c3f04c3df068b68bb2d725492caaa539dd313e2a9d26bb85b1a32f4e"
+checksum = "46eefd5468602930da46b1f49d3448c6dfc2e81295f93120f23f8174fd70267f"
 dependencies = [
  "anyhow",
  "camino",
- "cargo_metadata",
+ "cargo_metadata 0.19.2",
  "clap",
  "uniffi_bindgen",
  "uniffi_build",
@@ -7788,16 +7820,37 @@ dependencies = [
  "uniffi_pipeline",
 ]
 
+[[package]]
+name = "uniffi-dart"
+version = "0.1.0+v0.30.0"
+source = "git+https://github.com/Uniffi-Dart/uniffi-dart?rev=90f2c6f29cbf88c8bc2cf515e6a0c2314a48844c#90f2c6f29cbf88c8bc2cf515e6a0c2314a48844c"
+dependencies = [
+ "anyhow",
+ "camino",
+ "cargo_metadata 0.18.1",
+ "genco",
+ "heck 0.5.0",
+ "lazy_static",
+ "paste",
+ "proc-macro2",
+ "serde",
+ "stringcase 0.4.0",
+ "toml",
+ "uniffi",
+ "uniffi_bindgen",
+ "uniffi_dart_macro",
+]
+
 [[package]]
 name = "uniffi_bindgen"
-version = "0.30.0"
+version = "0.31.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7c8ca600167641ebe7c8ba9254af40492dda3397c528cc3b2f511bd23e8541a5"
+checksum = "c4a0c9b375d32e1365cdb2bdd7cb495eecf6fac851ddbad077412b4ee1888514"
 dependencies = [
  "anyhow",
  "askama",
  "camino",
- "cargo_metadata",
+ "cargo_metadata 0.19.2",
  "fs-err",
  "glob",
  "goblin",
@@ -7816,9 +7869,9 @@ dependencies = [
 
 [[package]]
 name = "uniffi_build"
-version = "0.30.0"
+version = "0.31.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3e55c05228f4858bb258f651d21d743fcc1fe5a2ec20d3c0f9daefddb105ee4d"
+checksum = "744fe15bcd3e2b1712a4573a45ce749af19cf28d69027ca5789619014955668c"
 dependencies = [
  "anyhow",
  "camino",
@@ -7827,21 +7880,35 @@ dependencies = [
 
 [[package]]
 name = "uniffi_core"
-version = "0.30.0"
+version = "0.31.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7e7a5a038ebffe8f4cf91416b154ef3c2468b18e828b7009e01b1b99938089f9"
+checksum = "eec017b112701681f6fbbe5d92014b5c468eb0b177a94389de03ceec40665095"
 dependencies = [
  "anyhow",
+ "async-compat",
  "bytes",
  "once_cell",
  "static_assertions",
 ]
 
+[[package]]
+name = "uniffi_dart_macro"
+version = "0.1.0+v0.30.0"
+source = "git+https://github.com/Uniffi-Dart/uniffi-dart?rev=90f2c6f29cbf88c8bc2cf515e6a0c2314a48844c#90f2c6f29cbf88c8bc2cf515e6a0c2314a48844c"
+dependencies = [
+ "futures",
+ "proc-macro2",
+ "quote",
+ "stringcase 0.3.0",
+ "syn 1.0.109",
+ "uniffi",
+]
+
 [[package]]
 name = "uniffi_internal_macros"
-version = "0.30.0"
+version = "0.31.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e3c2a6f93e7b73726e2015696ece25ca0ac5a5f1cf8d6a7ab5214dd0a01d2edf"
+checksum = "4641669b48fefbc5e80ff08c5004d9c7617fb91232131a6734ab6712779cb04c"
 dependencies = [
  "anyhow",
  "indexmap 2.13.0",
@@ -7852,9 +7919,9 @@ dependencies = [
 
 [[package]]
 name = "uniffi_macros"
-version = "0.30.0"
+version = "0.31.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "64c6309fc36c7992afc03bc0c5b059c656bccbef3f2a4bc362980017f8936141"
+checksum = "eeb8617ee814de22caf7417bf514715ba0b3f46bd9d5a5d794413fd8282cb737"
 dependencies = [
  "camino",
  "fs-err",
@@ -7869,9 +7936,9 @@ dependencies = [
 
 [[package]]
 name = "uniffi_meta"
-version = "0.30.0"
+version = "0.31.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0a138823392dba19b0aa494872689f97d0ee157de5852e2bec157ce6de9cdc22"
+checksum = "58d5b94fc92803d21b2928bd15c6f06e57609b95caf98ea561c99cda1b6d2a25"
 dependencies = [
  "anyhow",
  "siphasher",
@@ -7881,9 +7948,9 @@ dependencies = [
 
 [[package]]
 name = "uniffi_pipeline"
-version = "0.30.0"
+version = "0.31.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8c27c4b515d25f8e53cc918e238c39a79c3144a40eaf2e51c4a7958973422c29"
+checksum = "032739b3ec725576914c15899dedaf080163ced86b6934566c20ec2b20ce90ca"
 dependencies = [
  "anyhow",
  "heck 0.5.0",
@@ -7894,9 +7961,9 @@ dependencies = [
 
 [[package]]
 name = "uniffi_udl"
-version = "0.30.0"
+version = "0.31.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d0adacdd848aeed7af4f5af7d2f621d5e82531325d405e29463482becfdeafca"
+checksum = "fc0a1d0a0252ce1af9e8ce78ba67ac0d8937fb2bedaf10cbddd43d3614d06ec6"
 dependencies = [
  "anyhow",
  "textwrap",
@@ -8041,15 +8108,6 @@ dependencies = [
  "wit-bindgen",
 ]
 
-[[package]]
-name = "wasip3"
-version = "0.4.0+wasi-0.3.0-rc-2026-01-06"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5428f8bf88ea5ddc08faddef2ac4a67e390b88186c703ce6dbd955e1c145aca5"
-dependencies = [
- "wit-bindgen",
-]
-
 [[package]]
 name = "wasm-bindgen"
 version = "0.2.114"
@@ -8109,40 +8167,6 @@ dependencies = [
  "unicode-ident",
 ]
 
-[[package]]
-name = "wasm-encoder"
-version = "0.244.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "990065f2fe63003fe337b932cfb5e3b80e0b4d0f5ff650e6985b1048f62c8319"
-dependencies = [
- "leb128fmt",
- "wasmparser",
-]
-
-[[package]]
-name = "wasm-metadata"
-version = "0.244.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bb0e353e6a2fbdc176932bbaab493762eb1255a7900fe0fea1a2f96c296cc909"
-dependencies = [
- "anyhow",
- "indexmap 2.13.0",
- "wasm-encoder",
- "wasmparser",
-]
-
-[[package]]
-name = "wasmparser"
-version = "0.244.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "47b807c72e1bac69382b3a6fb3dbe8ea4c0ed87ff5629b8685ae6b9a611028fe"
-dependencies = [
- "bitflags 2.11.0",
- "hashbrown 0.15.5",
- "indexmap 2.13.0",
- "semver",
-]
-
 [[package]]
 name = "wayland-backend"
 version = "0.3.14"
@@ -8738,7 +8762,7 @@ version = "0.1.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c2a7b1c03c876122aa43f3020e6c3c3ee5c05081c9a00739faf7503aeba10d22"
 dependencies = [
- "windows-sys 0.61.2",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -9328,88 +9352,6 @@ name = "wit-bindgen"
 version = "0.51.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d7249219f66ced02969388cf2bb044a09756a083d0fab1e566056b04d9fbcaa5"
-dependencies = [
- "wit-bindgen-rust-macro",
-]
-
-[[package]]
-name = "wit-bindgen-core"
-version = "0.51.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ea61de684c3ea68cb082b7a88508a8b27fcc8b797d738bfc99a82facf1d752dc"
-dependencies = [
- "anyhow",
- "heck 0.5.0",
- "wit-parser",
-]
-
-[[package]]
-name = "wit-bindgen-rust"
-version = "0.51.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b7c566e0f4b284dd6561c786d9cb0142da491f46a9fbed79ea69cdad5db17f21"
-dependencies = [
- "anyhow",
- "heck 0.5.0",
- "indexmap 2.13.0",
- "prettyplease",
- "syn 2.0.117",
- "wasm-metadata",
- "wit-bindgen-core",
- "wit-component",
-]
-
-[[package]]
-name = "wit-bindgen-rust-macro"
-version = "0.51.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0c0f9bfd77e6a48eccf51359e3ae77140a7f50b1e2ebfe62422d8afdaffab17a"
-dependencies = [
- "anyhow",
- "prettyplease",
- "proc-macro2",
- "quote",
- "syn 2.0.117",
- "wit-bindgen-core",
- "wit-bindgen-rust",
-]
-
-[[package]]
-name = "wit-component"
-version = "0.244.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9d66ea20e9553b30172b5e831994e35fbde2d165325bec84fc43dbf6f4eb9cb2"
-dependencies = [
- "anyhow",
- "bitflags 2.11.0",
- "indexmap 2.13.0",
- "log",
- "serde",
- "serde_derive",
- "serde_json",
- "wasm-encoder",
- "wasm-metadata",
- "wasmparser",
- "wit-parser",
-]
-
-[[package]]
-name = "wit-parser"
-version = "0.244.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ecc8ac4bc1dc3381b7f59c34f00b67e18f910c2c0f50015669dde7def656a736"
-dependencies = [
- "anyhow",
- "id-arena",
- "indexmap 2.13.0",
- "log",
- "semver",
- "serde",
- "serde_derive",
- "serde_json",
- "unicode-xid",
- "wasmparser",
-]
 
 [[package]]
 name = "writeable"
diff --git a/livekit-uniffi/Cargo.toml b/livekit-uniffi/Cargo.toml
index 54a774c90..85daeb6bc 100644
--- a/livekit-uniffi/Cargo.toml
+++ b/livekit-uniffi/Cargo.toml
@@ -14,18 +14,32 @@ publish = false
 [dependencies]
 livekit-protocol = { workspace = true }
 livekit-api = { workspace = true }
-uniffi = { version = "0.30.0", features = ["cli", "scaffolding-ffi-buffer-fns"] }
+uniffi = { version = "0.31", features = ["cli", "scaffolding-ffi-buffer-fns"] }
 log = { workspace = true }
 tokio = { workspace = true, features = ["sync"] }
 once_cell = "1.21.3"
+# Dart binding generator. Not published to crates.io, so pinned by git rev. The
+# rev must target the same uniffi-rs release (0.31) as the `uniffi` dependency
+# above, or it cannot read this crate's compiled metadata.
+uniffi-dart = { git = "https://github.com/Uniffi-Dart/uniffi-dart", rev = "90f2c6f29cbf88c8bc2cf515e6a0c2314a48844c", optional = true }
+camino = { version = "1", optional = true }
+
+[features]
+# Enables the `uniffi-bindgen-dart` bin. Not enabled for library builds.
+dart-bindgen = ["dep:uniffi-dart", "dep:camino"]
 
 [build-dependencies]
-uniffi = { version = "0.30.0", features = ["build", "scaffolding-ffi-buffer-fns"] }
+uniffi = { version = "0.31", features = ["build", "scaffolding-ffi-buffer-fns"] }
 
 [[bin]]
 name = "uniffi-bindgen"
 path = "bindgen.rs"
 
+[[bin]]
+name = "uniffi-bindgen-dart"
+path = "bindgen-dart.rs"
+required-features = ["dart-bindgen"]
+
 [profile.release]
 opt-level = "z"
 lto = true
diff --git a/livekit-uniffi/Makefile.toml b/livekit-uniffi/Makefile.toml
index 609061c36..b41e3a668 100644
--- a/livekit-uniffi/Makefile.toml
+++ b/livekit-uniffi/Makefile.toml
@@ -165,7 +165,8 @@ command = "tera"
 [tasks.bindgen]
 dependencies = [
     "bindgen-kotlin",
-    "bindgen-python"
+    "bindgen-python",
+    "bindgen-dart",
 ]
 
 # MARK: - Kotlin
@@ -612,3 +613,21 @@ run_task = "android-publish-maven-local"
 
 # Add other bindgen tasks here, following the same pattern
 # as above for the task name (e.g., "bindgen-<lang>").
+
+# MARK: - Dart
+
+# uniffi-dart has no standalone CLI, so the `uniffi-bindgen-dart` bin drives its
+# library API instead (gated behind the `dart-bindgen` feature to keep its heavy
+# deps out of regular library builds). Reads metadata from the compiled cdylib
+# in library mode, like the Kotlin/Python tasks.
+[tasks.bindgen-dart]
+description = "Generate Dart bindings"
+dependencies = ["build", "locate-lib"]
+env = { LANG = "dart" }
+script_runner = "@duckscript"
+script = """
+out_dir = join_path ${PACKAGES_DIR} ${LANG}
+exec cargo run --features dart-bindgen --bin uniffi-bindgen-dart -- \
+    --library ${LIB_PATH} \
+    --out-dir ${out_dir}
+"""
\ No newline at end of file
diff --git a/livekit-uniffi/bindgen-dart.rs b/livekit-uniffi/bindgen-dart.rs
new file mode 100644
index 000000000..a3e751c12
--- /dev/null
+++ b/livekit-uniffi/bindgen-dart.rs
@@ -0,0 +1,65 @@
+// Copyright 2025 LiveKit, Inc.
+//
+// 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.
+
+//! Dart bindings generator for the UniFFI interface.
+//!
+//! [_uniffi-dart_](https://github.com/Uniffi-Dart/uniffi-dart) ships no working
+//! CLI of its own, so this thin binary drives its library API in
+//! [library mode][lm] — reading UniFFI metadata directly from a compiled
+//! `cdylib`, exactly as the Kotlin/Swift/Node tasks do via the stock
+//! `uniffi-bindgen`.
+//!
+//! Usage: `uniffi-bindgen-dart --library <cdylib> --out-dir <dir> [--config <uniffi.toml>]`
+//!
+//! [lm]: https://mozilla.github.io/uniffi-rs/latest/bindings.html
+
+use camino::Utf8PathBuf;
+
+fn main() {
+    let mut library: Option<Utf8PathBuf> = None;
+    let mut out_dir: Option<Utf8PathBuf> = None;
+    let mut config: Option<Utf8PathBuf> = None;
+
+    let mut args = std::env::args().skip(1);
+    while let Some(arg) = args.next() {
+        let mut take = |name: &str| -> Utf8PathBuf {
+            args.next().unwrap_or_else(|| panic!("{name} requires a value")).into()
+        };
+        match arg.as_str() {
+            "--library" => library = Some(take("--library")),
+            "--out-dir" => out_dir = Some(take("--out-dir")),
+            "--config" => config = Some(take("--config")),
+            // Tolerate a leading `generate` subcommand for symmetry with `uniffi-bindgen`.
+            "generate" => {}
+            other => panic!("unrecognized argument: {other}"),
+        }
+    }
+
+    let library = library.expect("--library <cdylib> is required");
+    let out_dir = out_dir.expect("--out-dir <dir> is required");
+    // The crate's `uniffi.toml` carries any `[bindings.dart]` config; default to
+    // it so a bare invocation from the crate root picks it up.
+    let config = config.unwrap_or_else(|| Utf8PathBuf::from("uniffi.toml"));
+
+    uniffi_dart::gen::generate_dart_bindings(
+        &config,        // udl_file: only consulted to locate config in library mode
+        None,           // config_file_override
+        Some(&out_dir), // out_dir_override
+        &library,       // compiled cdylib to read metadata from
+        true,           // library_mode
+    )
+    .expect("failed to generate Dart bindings");
+
+    println!("Generated Dart bindings to {out_dir}");
+}

From 7809a8357b7e2a2b25ef1b1ed70498ccf0a3f2f2 Mon Sep 17 00:00:00 2001
From: James Hugman <james@hugman.tv>
Date: Mon, 22 Jun 2026 17:59:38 +0100
Subject: [PATCH 2/5] Add pubspec.yaml and hook/build.dart

---
 livekit-uniffi/Makefile.toml                  | 58 ++++++++++++++++++-
 livekit-uniffi/bindgen-dart.rs                |  8 +--
 livekit-uniffi/support/dart/hook/build.dart   | 36 ++++++++++++
 livekit-uniffi/support/dart/pubspec.yaml.tera | 16 +++++
 livekit-uniffi/uniffi.toml                    |  8 ++-
 5 files changed, 120 insertions(+), 6 deletions(-)
 create mode 100644 livekit-uniffi/support/dart/hook/build.dart
 create mode 100644 livekit-uniffi/support/dart/pubspec.yaml.tera

diff --git a/livekit-uniffi/Makefile.toml b/livekit-uniffi/Makefile.toml
index b41e3a668..8ea46cc05 100644
--- a/livekit-uniffi/Makefile.toml
+++ b/livekit-uniffi/Makefile.toml
@@ -19,6 +19,7 @@ LIB_NAME = "lib${CARGO_MAKE_CRATE_FS_NAME}"
 TARGET_DIR = "${CARGO_MAKE_CRATE_TARGET_DIRECTORY}"
 SPM_NAME = "LiveKitUniFFI"
 NPM_NAME = "@livekit/uniffi"
+DART_PACKAGE_NAME = "livekit_uniffi"
 
 # Base URL for downloading release builds of the cdylib.
 # Currently, it is assumed the archives will be named "ffi-<platform>-<arch>.zip".
@@ -630,4 +631,59 @@ out_dir = join_path ${PACKAGES_DIR} ${LANG}
 exec cargo run --features dart-bindgen --bin uniffi-bindgen-dart -- \
     --library ${LIB_PATH} \
     --out-dir ${out_dir}
-"""
\ No newline at end of file
+"""
+
+# Assemble a consumable Dart package around the generated bindings: idiomatic
+# lib/ layout, a pubspec, the Native Assets build hook, and (dev) the locally
+# built dynamic library so a consumer can load it without a download step.
+#
+#   packages/dart/
+#     pubspec.yaml          (from support/dart/pubspec.yaml.tera)
+#     lib/livekit_uniffi.dart
+#     hook/build.dart       (from support/dart/hook/build.dart)
+#     liblivekit_uniffi.<ext>  (dev: copied local build)
+
+[tasks.dart-move-code-into-lib]
+private = true
+script_runner = "@shell"
+script = """
+mkdir -p ${PACKAGES_DIR}/${LANG}/lib
+mv ${PACKAGES_DIR}/${LANG}/*.dart ${PACKAGES_DIR}/${LANG}/lib
+"""
+
+[tasks.dart-generate-manifest]
+private = true
+extend = "tera"
+args = ["--env-only", "-t", "${SUPPORT_DIR}/${LANG}/pubspec.yaml.tera", "-o", "${PACKAGES_DIR}/${LANG}/pubspec.yaml"]
+
+[tasks.dart-copy-hook]
+private = true
+script_runner = "@shell"
+script = """
+mkdir -p ${PACKAGES_DIR}/${LANG}/hook
+cp ${SUPPORT_DIR}/${LANG}/hook/build.dart ${PACKAGES_DIR}/${LANG}/hook/build.dart
+"""
+
+# Dev delivery: copy the locally built dylib into the package root, where the
+# build hook resolves it. A release flow would replace this with a download.
+[tasks.dart-copy-lib]
+private = true
+script_runner = "@shell"
+script = """
+cp ${LIB_PATH} ${PACKAGES_DIR}/${LANG}/
+"""
+
+[tasks.dart-package-flow]
+private = true
+dependencies = [
+    "bindgen-dart",
+    "dart-move-code-into-lib",
+    "dart-generate-manifest",
+    "dart-copy-hook",
+    "dart-copy-lib"
+]
+
+[tasks.dart-package]
+description = "Build a consumable Dart package with bindings, hook, and (dev) native lib"
+env = { LANG = "dart" }
+run_task = "dart-package-flow"
\ No newline at end of file
diff --git a/livekit-uniffi/bindgen-dart.rs b/livekit-uniffi/bindgen-dart.rs
index a3e751c12..84d7cba86 100644
--- a/livekit-uniffi/bindgen-dart.rs
+++ b/livekit-uniffi/bindgen-dart.rs
@@ -53,11 +53,11 @@ fn main() {
     let config = config.unwrap_or_else(|| Utf8PathBuf::from("uniffi.toml"));
 
     uniffi_dart::gen::generate_dart_bindings(
-        &config,        // udl_file: only consulted to locate config in library mode
-        None,           // config_file_override
+        &config,        // udl_file (unused in library mode once a config override is set)
+        Some(&config), // config_file_override: routes through the supplier that reads [bindings.dart]
         Some(&out_dir), // out_dir_override
-        &library,       // compiled cdylib to read metadata from
-        true,           // library_mode
+        &library,      // compiled cdylib to read metadata from
+        true,          // library_mode
     )
     .expect("failed to generate Dart bindings");
 
diff --git a/livekit-uniffi/support/dart/hook/build.dart b/livekit-uniffi/support/dart/hook/build.dart
new file mode 100644
index 000000000..f4483375a
--- /dev/null
+++ b/livekit-uniffi/support/dart/hook/build.dart
@@ -0,0 +1,36 @@
+// Native Assets build hook for the LiveKit UniFFI Dart bindings.
+//
+// The generated bindings call into the native library through `@Native`
+// annotations bound to the asset id `package:<pkg>/uniffi:livekit_uniffi`.
+// This hook registers that code asset, resolving the prebuilt dynamic library
+// from the package root.
+import 'dart:io';
+
+import 'package:code_assets/code_assets.dart';
+import 'package:hooks/hooks.dart';
+
+// Matches `cdylib_name` in livekit-uniffi/uniffi.toml and the asset name baked
+// into the generated Dart.
+const _cdylibName = 'livekit_uniffi';
+
+String _libFileName() {
+  if (Platform.isMacOS) return 'lib$_cdylibName.dylib';
+  if (Platform.isWindows) return '$_cdylibName.dll';
+  return 'lib$_cdylibName.so';
+}
+
+void main(List<String> args) async {
+  await build(args, (input, output) async {
+    final libPath = input.packageRoot.resolve(_libFileName());
+
+    output.assets.code.add(
+      CodeAsset(
+        package: input.packageName,
+        // Dart prefixes this with `package:<packageName>/`.
+        name: 'uniffi:$_cdylibName',
+        linkMode: DynamicLoadingBundled(),
+        file: libPath,
+      ),
+    );
+  });
+}
diff --git a/livekit-uniffi/support/dart/pubspec.yaml.tera b/livekit-uniffi/support/dart/pubspec.yaml.tera
new file mode 100644
index 000000000..d92def583
--- /dev/null
+++ b/livekit-uniffi/support/dart/pubspec.yaml.tera
@@ -0,0 +1,16 @@
+name: {{ DART_PACKAGE_NAME }}
+description: Dart bindings for the LiveKit UniFFI interface.
+version: {{ CARGO_MAKE_CRATE_VERSION }}
+publish_to: none
+
+environment:
+  sdk: ">=3.10.0 <4.0.0"
+
+dependencies:
+  ffi: ^2.1.0
+
+dev_dependencies:
+  # Native Assets build-hook support. `any` tracks the SDK-bundled versions.
+  code_assets: any
+  hooks: any
+  test: ^1.25.0
diff --git a/livekit-uniffi/uniffi.toml b/livekit-uniffi/uniffi.toml
index 18e24e501..2ed2769f6 100644
--- a/livekit-uniffi/uniffi.toml
+++ b/livekit-uniffi/uniffi.toml
@@ -4,4 +4,10 @@ ffi_module_name = "RustLiveKitUniFFI"
 [bindings.kotlin]
 android = true
 package_name = "io.livekit.uniffi"
-cdylib_name = "livekit_uniffi" # the name of the so file to be loaded
\ No newline at end of file
+cdylib_name = "livekit_uniffi" # the name of the so file to be loaded
+
+[bindings.dart]
+# Dart package name; must match the published pub package so the Native Assets
+# asset id resolves to `package:livekit_uniffi/uniffi:livekit_uniffi`.
+package_name = "livekit_uniffi"
+cdylib_name = "livekit_uniffi"
\ No newline at end of file

From e30c53847c4790372f6efe3f8d048fda7651bb95 Mon Sep 17 00:00:00 2001
From: James Hugman <james@hugman.tv>
Date: Mon, 22 Jun 2026 19:31:57 +0100
Subject: [PATCH 3/5] Add cdylib publishing CI and release-mode Dart build hook

Release/multi-platform delivery for the Dart package:
- uniffi-cdylib.yml builds liblivekit_uniffi for desktop + mobile targets and
  attaches build-<triple>.zip (+ .sha256) to the livekit-uniffi release; wired
  into uniffi-packages.yml. Validated across all 10 targets via CI dry-run.
- hook/build.dart.tera gains a download mode: fetches and SHA-256-verifies the
  prebuilt library for the target when no local build is present.
---
 .github/workflows/uniffi-cdylib.yml           | 172 ++++++++++++++++++
 .github/workflows/uniffi-packages.yml         |  10 +
 livekit-uniffi/Makefile.toml                  |  22 ++-
 livekit-uniffi/support/dart/hook/build.dart   |  36 ----
 .../support/dart/hook/build.dart.tera         | 141 ++++++++++++++
 livekit-uniffi/support/dart/pubspec.yaml.tera |   4 +
 6 files changed, 341 insertions(+), 44 deletions(-)
 create mode 100644 .github/workflows/uniffi-cdylib.yml
 delete mode 100644 livekit-uniffi/support/dart/hook/build.dart
 create mode 100644 livekit-uniffi/support/dart/hook/build.dart.tera

diff --git a/.github/workflows/uniffi-cdylib.yml b/.github/workflows/uniffi-cdylib.yml
new file mode 100644
index 000000000..cdcce2eb6
--- /dev/null
+++ b/.github/workflows/uniffi-cdylib.yml
@@ -0,0 +1,172 @@
+name: UniFFI cdylib builds
+
+# Builds the livekit-uniffi dynamic library for every Dart/Flutter target and
+# attaches them to the livekit-uniffi release as `build-<triple>.zip` (+ a
+# `.sha256` sidecar). The Dart build hook (support/dart/hook/build.dart.tera)
+# downloads these at consumer build time.
+#
+# Reusable workflow, invoked from uniffi-packages.yml once the release tag has
+# been resolved. Mirrors the structure of ffi-builds.yml. Not triggered directly.
+
+on:
+  workflow_call:
+    inputs:
+      version:
+        description: Release version (e.g. 0.1.1)
+        required: true
+        type: string
+      tag_name:
+        description: Source release tag (e.g. livekit-uniffi/v0.1.1)
+        required: true
+        type: string
+      dry_run:
+        description: Build artifacts but skip release upload
+        type: boolean
+        default: false
+
+permissions:
+  contents: write
+
+jobs:
+  build:
+    name: Build (${{ matrix.target }})
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: macos-latest
+            target: aarch64-apple-darwin
+            platform: apple
+          - os: macos-latest
+            target: x86_64-apple-darwin
+            platform: apple
+          - os: macos-latest
+            target: aarch64-apple-ios
+            platform: apple
+          - os: ubuntu-latest
+            target: x86_64-unknown-linux-gnu
+            platform: linux
+          - os: ubuntu-latest
+            target: aarch64-unknown-linux-gnu
+            platform: linux
+          - os: windows-latest
+            target: x86_64-pc-windows-msvc
+            platform: windows
+          - os: windows-latest
+            target: aarch64-pc-windows-msvc
+            platform: windows
+          - os: ubuntu-latest
+            target: aarch64-linux-android
+            platform: android
+          - os: ubuntu-latest
+            target: armv7-linux-androideabi
+            platform: android
+          - os: ubuntu-latest
+            target: x86_64-linux-android
+            platform: android
+
+    steps:
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
+        with:
+          submodules: true
+
+      - name: Setup Rust toolchain
+        uses: actions-rust-lang/setup-rust-toolchain@46268bd060767258de96ed93c1251119784f2ab6 # v1.16.1
+        with:
+          target: ${{ matrix.target }}
+          cache: false
+          # This action defaults RUSTFLAGS to "-D warnings"; clear it so
+          # dependency warnings don't fail the build (matches ffi-builds.yml).
+          rustflags: ""
+
+      - name: Install Protoc
+        uses: arduino/setup-protoc@a8b67ba40b37d35169e222f3bb352603327985b6 # v2.1.0
+        with:
+          version: "25.2"
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+
+      # Apple, Windows: build the cdylib directly for the target.
+      - name: Build (Apple / Windows)
+        if: ${{ matrix.platform == 'apple' || matrix.platform == 'windows' }}
+        shell: bash
+        run: cargo build --release --target ${{ matrix.target }} -p livekit-uniffi
+
+      # Linux: native build for x64; cross toolchain for aarch64.
+      - name: Build (Linux)
+        if: ${{ matrix.platform == 'linux' }}
+        run: |
+          if [ "${{ matrix.target }}" = "aarch64-unknown-linux-gnu" ]; then
+            sudo apt-get update
+            sudo apt-get install -y gcc-aarch64-linux-gnu
+            export CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER=aarch64-linux-gnu-gcc
+            # .cargo/config.toml forces -fuse-ld=lld for this target to link
+            # libwebrtc; livekit-uniffi doesn't use libwebrtc. A non-empty global
+            # RUSTFLAGS overrides that per-target config, selecting the GNU bfd
+            # linker the cross binutils provides.
+            export RUSTFLAGS="-C link-arg=-fuse-ld=bfd"
+          fi
+          cargo build --release --target ${{ matrix.target }} -p livekit-uniffi
+
+      # Android: build with cargo-ndk.
+      - name: Build (Android)
+        if: ${{ matrix.platform == 'android' }}
+        run: |
+          cargo install cargo-ndk
+          cargo ndk --target ${{ matrix.target }} build --release -p livekit-uniffi
+
+      # macOS/Linux: zip + shasum are available.
+      - name: Package artifact (Unix)
+        if: ${{ matrix.platform != 'windows' }}
+        shell: bash
+        run: |
+          triple="${{ matrix.target }}"
+          dir="target/${triple}/release"
+          case "$triple" in
+            *apple*) lib="liblivekit_uniffi.dylib" ;;
+            *)       lib="liblivekit_uniffi.so" ;;
+          esac
+          out="build-${triple}.zip"
+          # Zip with the bare library name at the archive root.
+          (cd "$dir" && zip "$GITHUB_WORKSPACE/$out" "$lib")
+          # SHA-256 sidecar, in `shasum -a 256` format (lowercase hex first).
+          shasum -a 256 "$out" > "$out.sha256"
+
+      # Windows runners lack `zip`/`shasum`; use PowerShell equivalents and
+      # emit the same `<lowercase-hex>  <file>` sidecar format the hook parses.
+      - name: Package artifact (Windows)
+        if: ${{ matrix.platform == 'windows' }}
+        shell: pwsh
+        run: |
+          $triple = "${{ matrix.target }}"
+          $lib = "target/$triple/release/livekit_uniffi.dll"
+          $out = "build-$triple.zip"
+          Compress-Archive -Path $lib -DestinationPath $out -Force
+          $hash = (Get-FileHash -Algorithm SHA256 $out).Hash.ToLower()
+          "$hash  $out" | Out-File -Encoding ascii -NoNewline "$out.sha256"
+
+      - name: Upload build artifact
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        with:
+          name: cdylib-${{ matrix.target }}
+          path: |
+            build-${{ matrix.target }}.zip
+            build-${{ matrix.target }}.zip.sha256
+
+  release:
+    name: Attach cdylibs to release
+    needs: build
+    if: ${{ !inputs.dry_run }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Download build artifacts
+        uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
+        with:
+          pattern: cdylib-*
+          merge-multiple: true
+          path: cdylibs
+
+      - name: Upload to release
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: gh release upload "${{ inputs.tag_name }}" cdylibs/* --repo "${{ github.repository }}" --clobber
diff --git a/.github/workflows/uniffi-packages.yml b/.github/workflows/uniffi-packages.yml
index 1bea67880..67acc827b 100644
--- a/.github/workflows/uniffi-packages.yml
+++ b/.github/workflows/uniffi-packages.yml
@@ -76,3 +76,13 @@ jobs:
       tag_name: ${{ needs.resolve-tag.outputs.tag_name }}
       dry_run: ${{ inputs.dry_run || false }}
     secrets: inherit
+
+  # Raw cdylibs for the Dart package's build-hook download (build-<triple>.zip).
+  cdylib:
+    needs: resolve-tag
+    if: needs.resolve-tag.outputs.tag_name != ''
+    uses: ./.github/workflows/uniffi-cdylib.yml
+    with:
+      version: ${{ needs.resolve-tag.outputs.version }}
+      tag_name: ${{ needs.resolve-tag.outputs.tag_name }}
+      dry_run: ${{ inputs.dry_run || false }}
diff --git a/livekit-uniffi/Makefile.toml b/livekit-uniffi/Makefile.toml
index 8ea46cc05..8be17e626 100644
--- a/livekit-uniffi/Makefile.toml
+++ b/livekit-uniffi/Makefile.toml
@@ -21,9 +21,10 @@ SPM_NAME = "LiveKitUniFFI"
 NPM_NAME = "@livekit/uniffi"
 DART_PACKAGE_NAME = "livekit_uniffi"
 
-# Base URL for downloading release builds of the cdylib.
-# Currently, it is assumed the archives will be named "ffi-<platform>-<arch>.zip".
-CDYLIB_DOWNLOAD_BASE_URL = "https://github.com/livekit/example/releases/download/example/build"
+# Per-release directory holding the cdylib archives published by
+# .github/workflows/uniffi-cdylib.yml. Downloaders append
+# `/v<version>/build-<triple>.zip` (and a `.sha256` sidecar).
+CDYLIB_DOWNLOAD_BASE_URL = "https://github.com/livekit/rust-sdks/releases/download/livekit-uniffi"
 
 [config]
 skip_core_tasks = true
@@ -656,13 +657,18 @@ private = true
 extend = "tera"
 args = ["--env-only", "-t", "${SUPPORT_DIR}/${LANG}/pubspec.yaml.tera", "-o", "${PACKAGES_DIR}/${LANG}/pubspec.yaml"]
 
-[tasks.dart-copy-hook]
+# Render the build hook from its template, baking in the package version and the
+# release download base used by the hook's download (release) mode.
+[tasks.dart-make-hook-dir]
 private = true
 script_runner = "@shell"
-script = """
-mkdir -p ${PACKAGES_DIR}/${LANG}/hook
-cp ${SUPPORT_DIR}/${LANG}/hook/build.dart ${PACKAGES_DIR}/${LANG}/hook/build.dart
-"""
+script = "mkdir -p ${PACKAGES_DIR}/${LANG}/hook"
+
+[tasks.dart-copy-hook]
+private = true
+dependencies = ["dart-make-hook-dir"]
+extend = "tera"
+args = ["--env-only", "-t", "${SUPPORT_DIR}/${LANG}/hook/build.dart.tera", "-o", "${PACKAGES_DIR}/${LANG}/hook/build.dart"]
 
 # Dev delivery: copy the locally built dylib into the package root, where the
 # build hook resolves it. A release flow would replace this with a download.
diff --git a/livekit-uniffi/support/dart/hook/build.dart b/livekit-uniffi/support/dart/hook/build.dart
deleted file mode 100644
index f4483375a..000000000
--- a/livekit-uniffi/support/dart/hook/build.dart
+++ /dev/null
@@ -1,36 +0,0 @@
-// Native Assets build hook for the LiveKit UniFFI Dart bindings.
-//
-// The generated bindings call into the native library through `@Native`
-// annotations bound to the asset id `package:<pkg>/uniffi:livekit_uniffi`.
-// This hook registers that code asset, resolving the prebuilt dynamic library
-// from the package root.
-import 'dart:io';
-
-import 'package:code_assets/code_assets.dart';
-import 'package:hooks/hooks.dart';
-
-// Matches `cdylib_name` in livekit-uniffi/uniffi.toml and the asset name baked
-// into the generated Dart.
-const _cdylibName = 'livekit_uniffi';
-
-String _libFileName() {
-  if (Platform.isMacOS) return 'lib$_cdylibName.dylib';
-  if (Platform.isWindows) return '$_cdylibName.dll';
-  return 'lib$_cdylibName.so';
-}
-
-void main(List<String> args) async {
-  await build(args, (input, output) async {
-    final libPath = input.packageRoot.resolve(_libFileName());
-
-    output.assets.code.add(
-      CodeAsset(
-        package: input.packageName,
-        // Dart prefixes this with `package:<packageName>/`.
-        name: 'uniffi:$_cdylibName',
-        linkMode: DynamicLoadingBundled(),
-        file: libPath,
-      ),
-    );
-  });
-}
diff --git a/livekit-uniffi/support/dart/hook/build.dart.tera b/livekit-uniffi/support/dart/hook/build.dart.tera
new file mode 100644
index 000000000..b54a3c95e
--- /dev/null
+++ b/livekit-uniffi/support/dart/hook/build.dart.tera
@@ -0,0 +1,141 @@
+// Native Assets build hook for the LiveKit UniFFI Dart bindings.
+//
+// The generated bindings call the native library through `@Native` annotations
+// bound to the asset id `package:<pkg>/uniffi:livekit_uniffi`. This hook
+// resolves the dynamic library for the target and registers that code asset.
+//
+// Two modes, chosen automatically:
+//   - Local:   if a prebuilt library sits in the package root (placed there by
+//              `cargo make dart-package` during development), use it directly.
+//   - Download: otherwise fetch the prebuilt library for the target platform
+//              from the release host, verifying its SHA-256.
+//
+// Generated from support/dart/hook/build.dart.tera; do not edit the copy under
+// packages/.
+import 'dart:io';
+
+import 'package:archive/archive.dart';
+import 'package:code_assets/code_assets.dart';
+import 'package:crypto/crypto.dart';
+import 'package:hooks/hooks.dart';
+import 'package:http/http.dart' as http;
+
+// Matches `cdylib_name` in uniffi.toml and the asset name in the generated Dart.
+const _cdylibName = 'livekit_uniffi';
+const _version = '{{ CARGO_MAKE_CRATE_VERSION }}';
+// Per-release directory holding the `livekit_uniffi-<triple>.zip` assets.
+const _downloadBase = '{{ CDYLIB_DOWNLOAD_BASE_URL }}';
+
+void main(List<String> args) async {
+  await build(args, (input, output) async {
+    if (!input.config.buildCodeAssets) return;
+
+    final code = input.config.code;
+    final libFile = await _resolveLibrary(
+      input,
+      output,
+      code.targetOS,
+      code.targetArchitecture,
+    );
+
+    output.assets.code.add(
+      CodeAsset(
+        package: input.packageName,
+        // Dart prefixes this with `package:<packageName>/`.
+        name: 'uniffi:$_cdylibName',
+        linkMode: DynamicLoadingBundled(),
+        file: libFile,
+      ),
+    );
+  });
+}
+
+Future<Uri> _resolveLibrary(
+  BuildInput input,
+  BuildOutputBuilder output,
+  OS os,
+  Architecture arch,
+) async {
+  final libName = _libFileName(os);
+
+  // Local mode: library copied into the package root for development.
+  final local = File.fromUri(input.packageRoot.resolve(libName));
+  if (await local.exists()) return local.uri;
+
+  // Download mode: fetch the prebuilt library for the target. The hooks-runner
+  // already caches hook results across builds, so there's no manual cache check.
+  final outDir = Directory.fromUri(
+    input.outputDirectoryShared.resolve('$_cdylibName/'),
+  );
+  final libFile = File.fromUri(outDir.uri.resolve(libName));
+
+  final triple = _targetTriple(os, arch);
+  // Asset naming matches the existing node downloader convention so one set of
+  // release assets serves both: `<base>/v<version>/build-<triple>.zip`.
+  final zipUrl = Uri.parse('$_downloadBase/v$_version/build-$triple.zip');
+  final bytes = await _downloadAndVerify(zipUrl);
+
+  await outDir.create(recursive: true);
+  for (final entry in ZipDecoder().decodeBytes(bytes)) {
+    if (!entry.isFile) continue;
+    final out = File.fromUri(outDir.uri.resolve(entry.name));
+    await out.create(recursive: true);
+    await out.writeAsBytes(entry.content as List<int>);
+  }
+
+  if (!await libFile.exists()) {
+    throw Exception('$libName not found in $zipUrl');
+  }
+  output.dependencies.add(libFile.uri);
+  return libFile.uri;
+}
+
+Future<List<int>> _downloadAndVerify(Uri zipUrl) async {
+  final zipResp = await http.get(zipUrl);
+  if (zipResp.statusCode != 200) {
+    throw Exception('Failed to download $zipUrl: HTTP ${zipResp.statusCode}');
+  }
+  final shaResp = await http.get(Uri.parse('$zipUrl.sha256'));
+  if (shaResp.statusCode != 200) {
+    throw Exception(
+      'Failed to download checksum for $zipUrl: HTTP ${shaResp.statusCode}',
+    );
+  }
+  // `shasum`/`sha256sum` format: "<hex>  <filename>"; take the first token.
+  final expected = shaResp.body.trim().split(RegExp(r'\s+')).first;
+  final actual = sha256.convert(zipResp.bodyBytes).toString();
+  if (actual != expected) {
+    throw Exception(
+      'Checksum mismatch for $zipUrl: expected $expected, got $actual',
+    );
+  }
+  return zipResp.bodyBytes;
+}
+
+String _libFileName(OS os) {
+  if (os == OS.windows) return '$_cdylibName.dll';
+  if (os == OS.macOS || os == OS.iOS) return 'lib$_cdylibName.dylib';
+  return 'lib$_cdylibName.so'; // linux, android
+}
+
+// Maps a target to the Rust triple used in the published asset name. Kept in
+// sync with the build matrix in .github/workflows/uniffi-cdylib.yml.
+String _targetTriple(OS os, Architecture arch) {
+  if (os == OS.macOS) {
+    if (arch == Architecture.arm64) return 'aarch64-apple-darwin';
+    if (arch == Architecture.x64) return 'x86_64-apple-darwin';
+  } else if (os == OS.linux) {
+    if (arch == Architecture.arm64) return 'aarch64-unknown-linux-gnu';
+    if (arch == Architecture.x64) return 'x86_64-unknown-linux-gnu';
+  } else if (os == OS.windows) {
+    if (arch == Architecture.arm64) return 'aarch64-pc-windows-msvc';
+    if (arch == Architecture.x64) return 'x86_64-pc-windows-msvc';
+  } else if (os == OS.android) {
+    if (arch == Architecture.arm64) return 'aarch64-linux-android';
+    if (arch == Architecture.arm) return 'armv7-linux-androideabi';
+    if (arch == Architecture.x64) return 'x86_64-linux-android';
+  } else if (os == OS.iOS) {
+    if (arch == Architecture.arm64) return 'aarch64-apple-ios';
+  }
+  throw UnsupportedError('No prebuilt $_cdylibName for $os $arch');
+}
diff --git a/livekit-uniffi/support/dart/pubspec.yaml.tera b/livekit-uniffi/support/dart/pubspec.yaml.tera
index d92def583..e40add49b 100644
--- a/livekit-uniffi/support/dart/pubspec.yaml.tera
+++ b/livekit-uniffi/support/dart/pubspec.yaml.tera
@@ -13,4 +13,8 @@ dev_dependencies:
   # Native Assets build-hook support. `any` tracks the SDK-bundled versions.
   code_assets: any
   hooks: any
+  # Used by hook/build.dart to download and verify prebuilt libraries.
+  archive: ^4.0.0
+  crypto: ^3.0.0
+  http: ^1.2.0
   test: ^1.25.0

From 09b8e703cc1028d4f23e564a983c66ce709c9db9 Mon Sep 17 00:00:00 2001
From: James Hugman <james@hugman.tv>
Date: Tue, 23 Jun 2026 12:08:06 +0100
Subject: [PATCH 4/5] Add Dart package tests (smoke + access-token round-trip)

Ship tests in support/dart/test, copied into the generated package by the
dart-package flow. Covers the FFI smoke path (buildVersion) and a real
JWT/HMAC round-trip (generate -> verify -> decode, plus wrong-secret rejection)
to exercise Rust logic across the boundary.
---
 livekit-uniffi/Makefile.toml                  | 11 +++-
 .../support/dart/test/access_token_test.dart  | 51 +++++++++++++++++++
 .../support/dart/test/build_version_test.dart | 10 ++++
 3 files changed, 71 insertions(+), 1 deletion(-)
 create mode 100644 livekit-uniffi/support/dart/test/access_token_test.dart
 create mode 100644 livekit-uniffi/support/dart/test/build_version_test.dart

diff --git a/livekit-uniffi/Makefile.toml b/livekit-uniffi/Makefile.toml
index 8be17e626..5ec6e6764 100644
--- a/livekit-uniffi/Makefile.toml
+++ b/livekit-uniffi/Makefile.toml
@@ -679,6 +679,14 @@ script = """
 cp ${LIB_PATH} ${PACKAGES_DIR}/${LANG}/
 """
 
+[tasks.dart-copy-tests]
+private = true
+script_runner = "@shell"
+script = """
+mkdir -p ${PACKAGES_DIR}/${LANG}/test
+cp ${SUPPORT_DIR}/${LANG}/test/*.dart ${PACKAGES_DIR}/${LANG}/test/
+"""
+
 [tasks.dart-package-flow]
 private = true
 dependencies = [
@@ -686,7 +694,8 @@ dependencies = [
     "dart-move-code-into-lib",
     "dart-generate-manifest",
     "dart-copy-hook",
-    "dart-copy-lib"
+    "dart-copy-lib",
+    "dart-copy-tests"
 ]
 
 [tasks.dart-package]
diff --git a/livekit-uniffi/support/dart/test/access_token_test.dart b/livekit-uniffi/support/dart/test/access_token_test.dart
new file mode 100644
index 000000000..0fe5e5870
--- /dev/null
+++ b/livekit-uniffi/support/dart/test/access_token_test.dart
@@ -0,0 +1,51 @@
+import 'package:test/test.dart';
+import 'package:livekit_uniffi/livekit_uniffi.dart';
+
+void main() {
+  // Exercises real Rust JWT/HMAC logic across the FFI boundary: generate a
+  // token, then verify and decode it.
+  final creds = ApiCredentials(key: 'devkey', secret: 'devsecret');
+
+  group('access token', () {
+    test('generate produces a well-formed JWT', () {
+      final token = tokenGenerate(
+        options: TokenOptions(identity: 'alice', name: 'Alice'),
+        credentials: creds,
+      );
+      // header.payload.signature
+      expect(token.split('.'), hasLength(3));
+    });
+
+    test('verify round-trips identity, name, and issuer', () {
+      final token = tokenGenerate(
+        options: TokenOptions(identity: 'alice', name: 'Alice'),
+        credentials: creds,
+      );
+      final claims = tokenVerify(token: token, credentials: creds);
+      expect(claims.sub, equals('alice'));
+      expect(claims.name, equals('Alice'));
+      expect(claims.iss, equals('devkey'));
+    });
+
+    test('claims can be read without the secret', () {
+      final token = tokenGenerate(
+        options: TokenOptions(identity: 'bob'),
+        credentials: creds,
+      );
+      final claims = tokenClaimsFromUnverified(token: token);
+      expect(claims.sub, equals('bob'));
+    });
+
+    test('verify rejects a token signed with a different secret', () {
+      final token = tokenGenerate(
+        options: TokenOptions(identity: 'alice'),
+        credentials: creds,
+      );
+      final wrong = ApiCredentials(key: 'devkey', secret: 'wrongsecret');
+      expect(
+        () => tokenVerify(token: token, credentials: wrong),
+        throwsA(isA<AccessTokenException>()),
+      );
+    });
+  });
+}
diff --git a/livekit-uniffi/support/dart/test/build_version_test.dart b/livekit-uniffi/support/dart/test/build_version_test.dart
new file mode 100644
index 000000000..6080ff74d
--- /dev/null
+++ b/livekit-uniffi/support/dart/test/build_version_test.dart
@@ -0,0 +1,10 @@
+import 'package:test/test.dart';
+import 'package:livekit_uniffi/livekit_uniffi.dart';
+
+void main() {
+  // Smoke test for the whole FFI path: the build hook resolves the native
+  // library, Dart calls a Rust function, and the result crosses back.
+  test('buildVersion returns a non-empty version string', () {
+    expect(buildVersion(), isNotEmpty);
+  });
+}

From c60ae5189321fa636ce5d80b1c37e5406968c810 Mon Sep 17 00:00:00 2001
From: James Hugman <james@hugman.tv>
Date: Tue, 23 Jun 2026 12:43:22 +0100
Subject: [PATCH 5/5] Add CI job running the Dart package tests

uniffi-dart-test.yml builds the Dart package (host cdylib + bindings via
cargo make dart-package) and runs dart test on PRs/pushes touching
livekit-uniffi or its dependencies. The dart build keeps symbols
(CARGO_PROFILE_RELEASE_STRIP=false) so library-mode bindgen can read the
UNIFFI_META_* metadata, which the release strip removes on Linux.
---
 .github/workflows/uniffi-dart-test.yml | 80 ++++++++++++++++++++++++++
 livekit-uniffi/Makefile.toml           |  8 ++-
 2 files changed, 86 insertions(+), 2 deletions(-)
 create mode 100644 .github/workflows/uniffi-dart-test.yml

diff --git a/.github/workflows/uniffi-dart-test.yml b/.github/workflows/uniffi-dart-test.yml
new file mode 100644
index 000000000..62f341752
--- /dev/null
+++ b/.github/workflows/uniffi-dart-test.yml
@@ -0,0 +1,80 @@
+name: UniFFI Dart tests
+
+# Builds the Dart package (dev mode: host cdylib + generated bindings) and runs
+# its test suite, exercising the FFI boundary end-to-end. Scoped to changes that
+# can affect the livekit-uniffi Dart bindings.
+
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["main"]
+    paths:
+      - "livekit-uniffi/**"
+      - "livekit-api/**"
+      - "livekit-protocol/**"
+      - "Cargo.lock"
+      - "Cargo.toml"
+      - ".cargo/**"
+      - ".github/workflows/uniffi-dart-test.yml"
+
+permissions:
+  contents: read
+
+jobs:
+  dart-test:
+    name: Dart package tests
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
+        with:
+          submodules: true
+
+      - name: Setup Rust toolchain
+        uses: actions-rust-lang/setup-rust-toolchain@46268bd060767258de96ed93c1251119784f2ab6 # v1.16.1
+        with:
+          cache: false
+          rustflags: ""
+
+      - name: Install Protoc
+        uses: arduino/setup-protoc@a8b67ba40b37d35169e222f3bb352603327985b6 # v2.1.0
+        with:
+          version: "25.2"
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Setup Dart
+        uses: dart-lang/setup-dart@65eb853c7ba17dde3be364c3d2858773e7144260 # v1.7.2
+        with:
+          sdk: stable
+
+      - name: Cache cargo registry
+        uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
+        with:
+          path: |
+            ~/.cargo/registry/index/
+            ~/.cargo/registry/cache/
+            ~/.cargo/git/db/
+          key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-cargo-registry-
+
+      - name: Cache cargo target
+        uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
+        with:
+          path: target/
+          key: ${{ runner.os }}-cargo-target-dart-${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-cargo-target-dart-
+
+      - name: Install cargo-make
+        run: cargo install --locked cargo-make
+
+      - name: Build Dart package
+        working-directory: livekit-uniffi
+        run: cargo make dart-package
+
+      - name: Run Dart tests
+        working-directory: livekit-uniffi/packages/dart
+        run: |
+          dart pub get
+          dart test
diff --git a/livekit-uniffi/Makefile.toml b/livekit-uniffi/Makefile.toml
index 5ec6e6764..810d0d829 100644
--- a/livekit-uniffi/Makefile.toml
+++ b/livekit-uniffi/Makefile.toml
@@ -625,7 +625,10 @@ run_task = "android-publish-maven-local"
 [tasks.bindgen-dart]
 description = "Generate Dart bindings"
 dependencies = ["build", "locate-lib"]
-env = { LANG = "dart" }
+# Library-mode bindgen reads UNIFFI_META_* symbols from the cdylib. The release
+# profile's `strip = "symbols"` removes them on Linux (macOS strips less
+# aggressively), leaving no metadata to generate from — so keep symbols here.
+env = { LANG = "dart", CARGO_PROFILE_RELEASE_STRIP = "false" }
 script_runner = "@duckscript"
 script = """
 out_dir = join_path ${PACKAGES_DIR} ${LANG}
@@ -700,5 +703,6 @@ dependencies = [
 
 [tasks.dart-package]
 description = "Build a consumable Dart package with bindings, hook, and (dev) native lib"
-env = { LANG = "dart" }
+# See bindgen-dart: keep symbols so library-mode bindgen can read metadata.
+env = { LANG = "dart", CARGO_PROFILE_RELEASE_STRIP = "false" }
 run_task = "dart-package-flow"
\ No newline at end of file