diff --git a/apps/backend/Cargo.lock b/apps/backend/Cargo.lock
index 39a5ab5..e9ec275 100644
--- a/apps/backend/Cargo.lock
+++ b/apps/backend/Cargo.lock
@@ -346,6 +346,12 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "const-oid"
+version = "0.9.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c2459377285ad874054d797f3ccebf984978aa39129f6eafde5cdc8315b612f8"
+
 [[package]]
 name = "const-oid"
 version = "0.10.2"
@@ -426,23 +432,8 @@ dependencies = [
  "cfg-if",
  "cpufeatures 0.2.17",
  "curve25519-dalek-derive",
- "fiat-crypto 0.2.9",
- "rustc_version",
- "subtle",
- "zeroize",
-]
-
-[[package]]
-name = "curve25519-dalek"
-version = "5.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b5eed333089e2e1c1ac8c6c0398e5e2497b4c9926ca6d0365ed1e099afa5bc23"
-dependencies = [
- "cfg-if",
- "cpufeatures 0.3.0",
- "curve25519-dalek-derive",
- "digest 0.11.3",
- "fiat-crypto 0.3.0",
+ "digest 0.10.7",
+ "fiat-crypto",
  "rustc_version",
  "subtle",
  "zeroize",
@@ -465,14 +456,24 @@ version = "2.11.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4583a4551df46e2792f82ceeac45e850d2e2d5debba0b91f102385cda5b11f06"
 
+[[package]]
+name = "der"
+version = "0.7.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e7c1832837b905bbfb5101e07cc24c8deddf52f93225eee6ead5f4d63d53ddcb"
+dependencies = [
+ "const-oid 0.9.6",
+ "pem-rfc7468",
+ "zeroize",
+]
+
 [[package]]
 name = "der"
 version = "0.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a69dedd701da44b0536442edf09c81a64b0ab97a7a4a5e3d1971f00027cbc63d"
 dependencies = [
- "const-oid",
- "pem-rfc7468",
+ "const-oid 0.10.2",
  "zeroize",
 ]
 
@@ -513,7 +514,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f1dd6dbb5841937940781866fa1281a1ff7bd3bf827091440879f9994983d5c2"
 dependencies = [
  "block-buffer 0.12.1",
- "const-oid",
+ "const-oid 0.10.2",
  "crypto-common 0.2.2",
  "ctutils",
 ]
@@ -537,25 +538,24 @@ checksum = "92773504d58c093f6de2459af4af33faa518c13451eb8f2b5698ed3d36e7c813"
 
 [[package]]
 name = "ed25519"
-version = "3.0.0"
+version = "2.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "29fcf32e6c73d1079f83ab4d782de2d81620346a5f38c6237a86a22f8368980a"
+checksum = "115531babc129696a58c64a4fef0a8bf9e9698629fb97e9e40767d235cfbcd53"
 dependencies = [
- "pkcs8",
- "signature",
+ "pkcs8 0.10.2",
+ "signature 2.2.0",
 ]
 
 [[package]]
 name = "ed25519-dalek"
-version = "3.0.0"
+version = "2.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6ebaa1a2bf1290ab3bfe5a7b771d050ebffab2711c19a81691c683a5144a25de"
+checksum = "70e796c081cee67dc755e1a36a0a172b897fab85fc3f6bc48307991f64e4eca9"
 dependencies = [
- "curve25519-dalek 5.0.0",
+ "curve25519-dalek",
  "ed25519",
  "serde",
- "sha2",
- "signature",
+ "sha2 0.10.9",
  "subtle",
  "zeroize",
 ]
@@ -600,12 +600,6 @@ version = "0.2.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "28dea519a9695b9977216879a3ebfddf92f1c08c05d984f8996aecd6ecdc811d"
 
-[[package]]
-name = "fiat-crypto"
-version = "0.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "64cd1e32ddd350061ae6edb1b082d7c54915b5c672c389143b9a63403a109f24"
-
 [[package]]
 name = "find-msvc-tools"
 version = "0.1.10"
@@ -1371,14 +1365,14 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "add6b9d92e496f16f4526d68ff29da1483aba4b119baeab8bed3b9e3544a6f3d"
 dependencies = [
- "const-oid",
+ "const-oid 0.10.2",
  "crypto-common 0.2.2",
  "ctutils",
  "hybrid-array",
  "module-lattice",
- "pkcs8",
+ "pkcs8 0.11.0",
  "shake",
- "signature",
+ "signature 3.0.0",
 ]
 
 [[package]]
@@ -1420,8 +1414,8 @@ dependencies = [
 
 [[package]]
 name = "mtp"
-version = "0.3.0"
-source = "git+https://git.methanium.net/methanium/mtp.git?rev=f6a8b464e0daae6c7753208f3d8601d21cd47ab2#f6a8b464e0daae6c7753208f3d8601d21cd47ab2"
+version = "0.2.0"
+source = "git+https://git.methanium.net/methanium/mtp.git?rev=a692bed326dbfc8eac1a05825f4a287cbab6fd3e#a692bed326dbfc8eac1a05825f4a287cbab6fd3e"
 dependencies = [
  "mtp-client",
  "mtp-codec",
@@ -1435,45 +1429,45 @@ dependencies = [
 
 [[package]]
 name = "mtp-client"
-version = "0.3.0"
-source = "git+https://git.methanium.net/methanium/mtp.git?rev=f6a8b464e0daae6c7753208f3d8601d21cd47ab2#f6a8b464e0daae6c7753208f3d8601d21cd47ab2"
+version = "0.2.0"
+source = "git+https://git.methanium.net/methanium/mtp.git?rev=a692bed326dbfc8eac1a05825f4a287cbab6fd3e#a692bed326dbfc8eac1a05825f4a287cbab6fd3e"
 dependencies = [
  "mtp-codec",
  "mtp-common",
  "mtp-crypto",
  "mtp-transport",
- "rand",
+ "rand 0.10.2",
  "tokio",
 ]
 
 [[package]]
 name = "mtp-codec"
-version = "0.3.0"
-source = "git+https://git.methanium.net/methanium/mtp.git?rev=f6a8b464e0daae6c7753208f3d8601d21cd47ab2#f6a8b464e0daae6c7753208f3d8601d21cd47ab2"
+version = "0.2.0"
+source = "git+https://git.methanium.net/methanium/mtp.git?rev=a692bed326dbfc8eac1a05825f4a287cbab6fd3e#a692bed326dbfc8eac1a05825f4a287cbab6fd3e"
 dependencies = [
- "base64 0.23.1",
+ "base64 0.22.1",
  "byteorder",
  "mtp-common",
  "mtp-crypto",
  "mtp-type-map",
- "rand",
- "thiserror 2.0.20",
+ "rand 0.10.2",
 ]
 
 [[package]]
 name = "mtp-common"
-version = "0.3.0"
-source = "git+https://git.methanium.net/methanium/mtp.git?rev=f6a8b464e0daae6c7753208f3d8601d21cd47ab2#f6a8b464e0daae6c7753208f3d8601d21cd47ab2"
+version = "0.2.0"
+source = "git+https://git.methanium.net/methanium/mtp.git?rev=a692bed326dbfc8eac1a05825f4a287cbab6fd3e#a692bed326dbfc8eac1a05825f4a287cbab6fd3e"
 dependencies = [
  "quinn",
+ "rustls",
  "thiserror 2.0.20",
  "wtransport",
 ]
 
 [[package]]
 name = "mtp-crypto"
-version = "0.3.0"
-source = "git+https://git.methanium.net/methanium/mtp.git?rev=f6a8b464e0daae6c7753208f3d8601d21cd47ab2#f6a8b464e0daae6c7753208f3d8601d21cd47ab2"
+version = "0.2.0"
+source = "git+https://git.methanium.net/methanium/mtp.git?rev=a692bed326dbfc8eac1a05825f4a287cbab6fd3e#a692bed326dbfc8eac1a05825f4a287cbab6fd3e"
 dependencies = [
  "base64 0.22.1",
  "chacha20poly1305",
@@ -1482,11 +1476,11 @@ dependencies = [
  "hkdf",
  "ml-dsa",
  "mlkem-tls",
- "rand",
- "rand_core 0.6.4",
+ "rand 0.10.2",
+ "rand_core 0.10.1",
  "rustls",
  "serde",
- "sha2",
+ "sha2 0.11.0",
  "thiserror 1.0.69",
  "tokio",
  "zeroize",
@@ -1494,15 +1488,14 @@ dependencies = [
 
 [[package]]
 name = "mtp-host"
-version = "0.3.0"
-source = "git+https://git.methanium.net/methanium/mtp.git?rev=f6a8b464e0daae6c7753208f3d8601d21cd47ab2#f6a8b464e0daae6c7753208f3d8601d21cd47ab2"
+version = "0.2.0"
+source = "git+https://git.methanium.net/methanium/mtp.git?rev=a692bed326dbfc8eac1a05825f4a287cbab6fd3e#a692bed326dbfc8eac1a05825f4a287cbab6fd3e"
 dependencies = [
  "mtp-codec",
  "mtp-common",
  "mtp-crypto",
  "mtp-transport",
- "rand",
- "thiserror 2.0.20",
+ "rand 0.8.7",
  "tokio",
  "tracing",
  "wtransport",
@@ -1510,28 +1503,26 @@ dependencies = [
 
 [[package]]
 name = "mtp-transport"
-version = "0.3.0"
-source = "git+https://git.methanium.net/methanium/mtp.git?rev=f6a8b464e0daae6c7753208f3d8601d21cd47ab2#f6a8b464e0daae6c7753208f3d8601d21cd47ab2"
+version = "0.2.0"
+source = "git+https://git.methanium.net/methanium/mtp.git?rev=a692bed326dbfc8eac1a05825f4a287cbab6fd3e#a692bed326dbfc8eac1a05825f4a287cbab6fd3e"
 dependencies = [
  "async-trait",
  "mtp-codec",
  "mtp-common",
  "mtp-crypto",
- "rand",
  "rcgen",
  "rustls",
  "rustls-native-certs",
- "sha2",
+ "sha2 0.11.0",
  "tokio",
  "tracing",
  "wtransport",
- "zeroize",
 ]
 
 [[package]]
 name = "mtp-type-map"
-version = "0.3.0"
-source = "git+https://git.methanium.net/methanium/mtp.git?rev=f6a8b464e0daae6c7753208f3d8601d21cd47ab2#f6a8b464e0daae6c7753208f3d8601d21cd47ab2"
+version = "0.2.0"
+source = "git+https://git.methanium.net/methanium/mtp.git?rev=a692bed326dbfc8eac1a05825f4a287cbab6fd3e#a692bed326dbfc8eac1a05825f4a287cbab6fd3e"
 dependencies = [
  "serde",
  "serde_yaml",
@@ -1539,8 +1530,8 @@ dependencies = [
 
 [[package]]
 name = "mtp-webserver"
-version = "0.3.0"
-source = "git+https://git.methanium.net/methanium/mtp.git?rev=f6a8b464e0daae6c7753208f3d8601d21cd47ab2#f6a8b464e0daae6c7753208f3d8601d21cd47ab2"
+version = "0.2.0"
+source = "git+https://git.methanium.net/methanium/mtp.git?rev=a692bed326dbfc8eac1a05825f4a287cbab6fd3e#a692bed326dbfc8eac1a05825f4a287cbab6fd3e"
 dependencies = [
  "async-trait",
  "bytes",
@@ -1557,6 +1548,7 @@ dependencies = [
  "mtp-host",
  "mtp-transport",
  "quinn",
+ "rand 0.10.2",
  "rustls",
  "thiserror 2.0.20",
  "tokio",
@@ -1686,9 +1678,9 @@ dependencies = [
 
 [[package]]
 name = "pem-rfc7468"
-version = "1.0.0"
+version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a6305423e0e7738146434843d1694d621cce767262b2a86910beab705e4493d9"
+checksum = "88b39c9bfcfc231068454382784bb460aae594343fb030d46e9f50a645418412"
 dependencies = [
  "base64ct",
 ]
@@ -1705,14 +1697,24 @@ version = "0.2.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a89322df9ebe1c1578d689c92318e070967d1042b512afbe49518723f4e6d5cd"
 
+[[package]]
+name = "pkcs8"
+version = "0.10.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f950b2377845cebe5cf8b5165cb3cc1a5e0fa5cfa3e1f7f55707d8fd82e0a7b7"
+dependencies = [
+ "der 0.7.10",
+ "spki 0.7.3",
+]
+
 [[package]]
 name = "pkcs8"
 version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "451913da69c775a56034ea8d9003d27ee8948e12443eae7c038ba100a4f21cb7"
 dependencies = [
- "der",
- "spki",
+ "der 0.8.1",
+ "spki 0.8.0",
 ]
 
 [[package]]
@@ -1753,6 +1755,15 @@ version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "439ee305def115ba05938db6eb1644ff94165c5ab5e9420d1c1bcedbba909391"
 
+[[package]]
+name = "ppv-lite86"
+version = "0.2.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "85eae3c4ed2f50dcfe72643da4befc30deadb458a9b590d720cde2f2b1e97da9"
+dependencies = [
+ "zerocopy",
+]
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.107"
@@ -1794,7 +1805,7 @@ dependencies = [
  "fastbloom",
  "getrandom 0.4.3",
  "lru-slab",
- "rand",
+ "rand 0.10.2",
  "rand_pcg",
  "ring",
  "rustc-hash",
@@ -1837,6 +1848,17 @@ version = "6.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f8dcc9c7d52a811697d2151c701e0d08956f92b0e24136cf4cf27b57a6a0d9bf"
 
+[[package]]
+name = "rand"
+version = "0.8.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "22f6172bdec972074665ed81ed53b71da00bfc44b65a753cfde883ec4c702a1a"
+dependencies = [
+ "libc",
+ "rand_chacha",
+ "rand_core 0.6.4",
+]
+
 [[package]]
 name = "rand"
 version = "0.10.2"
@@ -1848,6 +1870,16 @@ dependencies = [
  "rand_core 0.10.1",
 ]
 
+[[package]]
+name = "rand_chacha"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e6c10a63a0fa32252be49d21e7709d4d4baf8d231c2dbce1eaa8141b9b127d88"
+dependencies = [
+ "ppv-lite86",
+ "rand_core 0.6.4",
+]
+
 [[package]]
 name = "rand_core"
 version = "0.6.4"
@@ -2232,6 +2264,17 @@ dependencies = [
  "unsafe-libyaml",
 ]
 
+[[package]]
+name = "sha2"
+version = "0.10.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a7507d819769d01a365ab707794a4084392c824f54a7a6a7862f8c3d0892b283"
+dependencies = [
+ "cfg-if",
+ "cpufeatures 0.2.17",
+ "digest 0.10.7",
+]
+
 [[package]]
 name = "sha2"
 version = "0.11.0"
@@ -2289,6 +2332,15 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "signature"
+version = "2.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "77549399552de45a898a580c1b41d445bf730df867cc44e6c0233bbc4b8329de"
+dependencies = [
+ "rand_core 0.6.4",
+]
+
 [[package]]
 name = "signature"
 version = "3.0.0"
@@ -2343,6 +2395,16 @@ dependencies = [
  "windows-sys 0.61.2",
 ]
 
+[[package]]
+name = "spki"
+version = "0.7.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d91ed6c858b01f942cd56b37a94b3e0a1798290327d1236e4d9cf4eaca44d29d"
+dependencies = [
+ "base64ct",
+ "der 0.7.10",
+]
+
 [[package]]
 name = "spki"
 version = "0.8.0"
@@ -2350,7 +2412,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1d9efca8738c78ee9484207732f728b1ef517bbb1833d6fc0879ca898a522f6f"
 dependencies = [
  "base64ct",
- "der",
+ "der 0.8.1",
 ]
 
 [[package]]
@@ -3153,7 +3215,7 @@ dependencies = [
  "rustls",
  "rustls-native-certs",
  "rustls-pki-types",
- "sha2",
+ "sha2 0.11.0",
  "socket2",
  "thiserror 2.0.20",
  "time",
@@ -3182,7 +3244,7 @@ version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c7e468321c81fb07fa7f4c636c3972b9100f0346e5b6a9f2bd0603a52f7ed277"
 dependencies = [
- "curve25519-dalek 4.1.3",
+ "curve25519-dalek",
  "rand_core 0.6.4",
  "serde",
  "zeroize",
@@ -3240,6 +3302,26 @@ dependencies = [
  "synstructure",
 ]
 
+[[package]]
+name = "zerocopy"
+version = "0.8.56"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "556764e583adb45a9f8d413c2a147fa7e8d821e48e12b14fd560b607998b75eb"
+dependencies = [
+ "zerocopy-derive",
+]
+
+[[package]]
+name = "zerocopy-derive"
+version = "0.8.56"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f2ab42fc20575779bd240faa45f94a74256f755c0fa9e89f0ede20d91d0cdfc1"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.119",
+]
+
 [[package]]
 name = "zerofrom"
 version = "0.1.8"
diff --git a/apps/backend/Cargo.toml b/apps/backend/Cargo.toml
index 0286932..8d8270d 100644
--- a/apps/backend/Cargo.toml
+++ b/apps/backend/Cargo.toml
@@ -8,7 +8,7 @@ axum = "0.8"
 base64 = "0.23"
 chrono = { version = "0.4", features = ["serde"] }
 http = "1"
-mtp = { git = "https://git.methanium.net/methanium/mtp.git", rev = "f6a8b464e0daae6c7753208f3d8601d21cd47ab2", features = ["crypto", "web-server"] }
+mtp = { git = "https://git.methanium.net/methanium/mtp.git", rev = "a692bed326dbfc8eac1a05825f4a287cbab6fd3e", features = ["crypto", "web-server"] }
 reqwest = { version = "0.12", default-features = false, features = ["rustls-tls"] }
 serde = { version = "1", features = ["derive"] }
 serde_json = "1"