From b6e71c2b5c744bc6824c6d246feb278586603d48 Mon Sep 17 00:00:00 2001
From: Henrik Nygren <nygrenh@gmail.com>
Date: Wed, 24 Jun 2026 23:38:37 +0300
Subject: [PATCH 1/5] Upgrade crossterm to 0.29 and ratatui to 0.30

Bump MSRV to 1.88. Adapt to the new ratatui API (backend error bound on
the draw/event-loop helpers, elided lifetime on with_items) and fix the
clippy lints the new toolchain surfaced.
---
 Cargo.lock                | 601 +++++++++++++++++++++++++++-----------
 Cargo.toml                |   8 +-
 src/commands/courses.rs   |   2 +-
 src/commands/exercises.rs |   4 +-
 src/interactive/prompt.rs |   2 +
 src/interactive/state.rs  |   2 +-
 src/lib.rs                |   4 +
 src/updater.rs            |   1 -
 8 files changed, 444 insertions(+), 180 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 24ac1f2..022f215 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,6 +1,6 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-version = 3
+version = 4
 
 [[package]]
 name = "addr2line"
@@ -28,18 +28,6 @@ dependencies = [
  "cpufeatures",
 ]
 
-[[package]]
-name = "ahash"
-version = "0.8.11"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e89da841a80418a9b391ebaea17f5c112ffaaa96f621d2c285b5174da76b9011"
-dependencies = [
- "cfg-if",
- "once_cell",
- "version_check",
- "zerocopy",
-]
-
 [[package]]
 name = "aho-corasick"
 version = "1.1.3"
@@ -128,6 +116,15 @@ dependencies = [
  "backtrace",
 ]
 
+[[package]]
+name = "approx"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cab112f0a86d568ea0e627cc1d6be74a1e9cd55214684db5561995f6dad897c6"
+dependencies = [
+ "num-traits",
+]
+
 [[package]]
 name = "arbitrary"
 version = "1.3.2"
@@ -228,9 +225,9 @@ checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
 [[package]]
 name = "bitflags"
-version = "2.6.0"
+version = "2.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b048fb63fd8b5923fc5aa7b340d8e156aec7ec02f0c78fa8a6ddc2613f6f71de"
+checksum = "b4388bee8683e3d04af747c73422af53102d2bd24d9eadb6cbc100baef4b43f8"
 
 [[package]]
 name = "blake3"
@@ -271,6 +268,12 @@ version = "3.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "79296716171880943b8470b5f8d03aa55eb2e645a4874bdbb28adb49162e012c"
 
+[[package]]
+name = "by_address"
+version = "1.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "64fa3c856b712db6612c019f14756e64e4bcea13337a6b33b696333a9eaa2d06"
+
 [[package]]
 name = "byteorder"
 version = "1.5.0"
@@ -304,12 +307,6 @@ dependencies = [
  "pkg-config",
 ]
 
-[[package]]
-name = "cassowary"
-version = "0.3.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "df8670b8c7b9dae1793364eafadf7239c40d669904660c5960d74cfd80b46a53"
-
 [[package]]
 name = "castaway"
 version = "0.2.3"
@@ -338,9 +335,9 @@ checksum = "6d43a04d8753f35258c91f8ec639f792891f748a1edbd759cf1dcea3382ad83c"
 
 [[package]]
 name = "cfg-if"
-version = "1.0.0"
+version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+checksum = "9330f8b2ff13f34540b44e946ef35111825727b38d33286ef986142615121801"
 
 [[package]]
 name = "cfg_aliases"
@@ -413,7 +410,7 @@ dependencies = [
  "heck",
  "proc-macro2",
  "quote",
- "syn 2.0.77",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -440,9 +437,9 @@ dependencies = [
 
 [[package]]
 name = "compact_str"
-version = "0.8.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6050c3a16ddab2e412160b31f2c871015704239bca62f72f6e5f0be631d3f644"
+checksum = "9dfdd1c2274d9aa354115b09dc9a901d6c5576818cdf70d14cae2bdb47df00ab"
 dependencies = [
  "castaway",
  "cfg-if",
@@ -461,7 +458,7 @@ dependencies = [
  "encode_unicode",
  "lazy_static",
  "libc",
- "unicode-width",
+ "unicode-width 0.1.13",
  "windows-sys 0.52.0",
 ]
 
@@ -471,6 +468,15 @@ version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7c74b8349d32d297c9134b8c88677813a227df8f779daa29bfc29c183fe3dca6"
 
+[[package]]
+name = "convert_case"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "633458d4ef8c78b72454de2d54fd6ab2e60f9e02be22f3c6104cdc8a4e0fceb9"
+dependencies = [
+ "unicode-segmentation",
+]
+
 [[package]]
 name = "cookie"
 version = "0.17.0"
@@ -565,15 +571,17 @@ checksum = "22ec99545bb0ed0ea7bb9b8e1e9122ea386ff8a48c0922e43f36d45ab09e0e80"
 
 [[package]]
 name = "crossterm"
-version = "0.28.1"
+version = "0.29.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "829d955a0bb380ef178a640b91779e3987da38c9aea133b20614cfed8cdea9c6"
+checksum = "d8b9f2e4c67f833b660cdb0a3523065869fb35570177239812ed4c905aeff87b"
 dependencies = [
- "bitflags 2.6.0",
+ "bitflags 2.13.0",
  "crossterm_winapi",
+ "derive_more",
+ "document-features",
  "mio",
  "parking_lot",
- "rustix",
+ "rustix 1.1.4",
  "signal-hook",
  "signal-hook-mio",
  "winapi",
@@ -606,12 +614,9 @@ checksum = "da692b8d1080ea3045efaab14434d40468c3d8657e42abddfffca87b428f4c1b"
 
 [[package]]
 name = "deranged"
-version = "0.3.11"
+version = "0.5.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b42b6fa04a440b495c8b04d0e71b707c585f83cb9cb28cf8cd0d976c315e31b4"
-dependencies = [
- "powerfmt",
-]
+checksum = "7cd812cc2bc1d69d4764bd80df88b4317eaef9e773c75226407d9bc0876b211c"
 
 [[package]]
 name = "derive_arbitrary"
@@ -621,7 +626,29 @@ checksum = "67e77553c4162a157adbf834ebae5b415acbecbeafc7a74b0e886657506a7611"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.77",
+ "syn 2.0.87",
+]
+
+[[package]]
+name = "derive_more"
+version = "2.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d751e9e49156b02b44f9c1815bcb94b984cdcc4396ecc32521c739452808b134"
+dependencies = [
+ "derive_more-impl",
+]
+
+[[package]]
+name = "derive_more-impl"
+version = "2.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "799a97264921d8623a957f6c3b9011f3b5492f557bbb7a5a19b7fa6d06ba8dcb"
+dependencies = [
+ "convert_case",
+ "proc-macro2",
+ "quote",
+ "rustc_version",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -670,7 +697,7 @@ checksum = "97369cbbc041bc366949bc74d34658d6cda5621039731c6310521892a3a20ae0"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.77",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -679,6 +706,15 @@ version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fea41bba32d969b513997752735605054bc0dfa92b4c56bf1189f2e174be7a10"
 
+[[package]]
+name = "document-features"
+version = "0.2.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d4b8a88685455ed29a21542a33abd9cb6510b6b129abadabdcef0f4c55bc8f61"
+dependencies = [
+ "litrs",
+]
+
 [[package]]
 name = "dunce"
 version = "1.0.5"
@@ -720,14 +756,20 @@ checksum = "5443807d6dff69373d433ab9ef5378ad8df50ca6298caf15de6e52e24aaf54d5"
 
 [[package]]
 name = "errno"
-version = "0.3.9"
+version = "0.3.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "534c5cf6194dfab3db3242765c03bbe257cf92f22b38f6bc0c58d59108a820ba"
+checksum = "39cab71617ae0d63f51a36d69f866391735b51691dbda63cf6f96d042b63efeb"
 dependencies = [
  "libc",
- "windows-sys 0.52.0",
+ "windows-sys 0.59.0",
 ]
 
+[[package]]
+name = "fast-srgb8"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dd2e7510819d6fbf51a5545c8f922716ecfb14df168a3242f7d33e0239efe6a1"
+
 [[package]]
 name = "fastrand"
 version = "2.1.1"
@@ -741,7 +783,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7e5768da2206272c81ef0b5e951a41862938a6070da63bcea197899942d3b947"
 dependencies = [
  "cfg-if",
- "rustix",
+ "rustix 0.38.36",
  "windows-sys 0.52.0",
 ]
 
@@ -778,7 +820,7 @@ dependencies = [
  "log",
  "nu-ansi-term 0.50.1",
  "regex",
- "thiserror",
+ "thiserror 1.0.63",
 ]
 
 [[package]]
@@ -796,6 +838,12 @@ version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
 
+[[package]]
+name = "foldhash"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "77ce24cb58228fbb8aa041425bb1050850ac19177686ea6e0f41a70416f56fdb"
+
 [[package]]
 name = "form_urlencoded"
 version = "1.2.1"
@@ -867,7 +915,7 @@ checksum = "87750cf4b7a4c0625b1529e4c543c2182106e4dedc60a2a6455e00d212c489ac"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.77",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -923,6 +971,17 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "getrandom"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "300e883d756b2e4ec94e02791f39b04b522276138852cfc41d9fb7e904106099"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "r-efi",
+]
+
 [[package]]
 name = "gimli"
 version = "0.31.0"
@@ -978,9 +1037,27 @@ name = "hashbrown"
 version = "0.14.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e5274423e17b7c9fc20b6e7e208532f9b19825d82dfd615708b70edd83df41f1"
+
+[[package]]
+name = "hashbrown"
+version = "0.16.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "841d1cc9bed7f9236f321df977030373f4a4163ae1a7dbfe1a51a2c1a51d9100"
+dependencies = [
+ "allocator-api2",
+ "equivalent",
+ "foldhash",
+]
+
+[[package]]
+name = "hashbrown"
+version = "0.17.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ed5909b6e89a2db4456e54cd5f673791d7eca6732202bbf2a9cc504fe2f9b84a"
 dependencies = [
- "ahash",
  "allocator-api2",
+ "equivalent",
+ "foldhash",
 ]
 
 [[package]]
@@ -1225,7 +1302,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "68b900aa2f7301e21c36462b170ee99994de34dff39a4a6a528e80e7376d07e5"
 dependencies = [
  "equivalent",
- "hashbrown",
+ "hashbrown 0.14.5",
 ]
 
 [[package]]
@@ -1238,7 +1315,16 @@ dependencies = [
  "instant",
  "number_prefix",
  "portable-atomic",
- "unicode-width",
+ "unicode-width 0.1.13",
+]
+
+[[package]]
+name = "indoc"
+version = "2.0.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "79cf5c93f93228cf8efb3ba362535fb11199ac548a09ce117c9b1adc3030d706"
+dependencies = [
+ "rustversion",
 ]
 
 [[package]]
@@ -1257,7 +1343,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b23a0c8dfe501baac4adf6ebbfa6eddf8f0c07f56b058cc1288017e32397846c"
 dependencies = [
  "quote",
- "syn 2.0.77",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -1292,9 +1378,9 @@ dependencies = [
 
 [[package]]
 name = "itertools"
-version = "0.13.0"
+version = "0.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "413ee7dfc52ee1a4949ceeb7dbc8a33f2d6c088194d9f922fb8318faf1f01186"
+checksum = "2b192c782037fadd9cfa75548310488aabdbf3d2da73885b31bd0abd03351285"
 dependencies = [
  "either",
 ]
@@ -1366,10 +1452,11 @@ dependencies = [
 
 [[package]]
 name = "js-sys"
-version = "0.3.70"
+version = "0.3.95"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1868808506b929d7b0cfa8f75951347aa71bb21144b7791bae35d9bccfcfe37a"
+checksum = "2964e92d1d9dc3364cae4d718d93f227e3abb088e747d92e0395bfdedf1c12ca"
 dependencies = [
+ "once_cell",
  "wasm-bindgen",
 ]
 
@@ -1388,6 +1475,17 @@ dependencies = [
  "sha2",
 ]
 
+[[package]]
+name = "kasuari"
+version = "0.4.12"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bde5057d6143cc94e861d90f591b9303d6716c6b9602309150bd068853c10899"
+dependencies = [
+ "hashbrown 0.16.1",
+ "portable-atomic",
+ "thiserror 2.0.18",
+]
+
 [[package]]
 name = "lazy_static"
 version = "1.5.0"
@@ -1396,9 +1494,9 @@ checksum = "bbd2bcb4c963f2ddae06a2efc7e9f3591312473c50c6685e1f298068316e66fe"
 
 [[package]]
 name = "libc"
-version = "0.2.158"
+version = "0.2.186"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d8adc4bb1803a324070e64a98ae98f38934d91957a99cfb3a43dcbc01bc56439"
+checksum = "68ab91017fe16c622486840e4c83c9a37afeff978bd239b5293d61ece587de66"
 
 [[package]]
 name = "libloading"
@@ -1410,23 +1508,50 @@ dependencies = [
  "windows-targets 0.52.6",
 ]
 
+[[package]]
+name = "libm"
+version = "0.2.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b6d2cec3eae94f9f509c767b45932f1ada8350c4bdb85af2fcab4a3c14807981"
+
 [[package]]
 name = "libredox"
 version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c0ff37bd590ca25063e35af745c343cb7a0271906fb7b37e4813e8f79f00268d"
 dependencies = [
- "bitflags 2.6.0",
+ "bitflags 2.13.0",
  "libc",
  "redox_syscall",
 ]
 
+[[package]]
+name = "line-clipping"
+version = "0.3.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3f50e8f47623268b5407192d26876c4d7f89d686ca130fdc53bced4814cd29f8"
+dependencies = [
+ "bitflags 2.13.0",
+]
+
 [[package]]
 name = "linux-raw-sys"
 version = "0.4.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "78b3ae25bc7c8c38cec158d1f2757ee79e9b3740fbc7ccf0e59e4b08d793fa89"
 
+[[package]]
+name = "linux-raw-sys"
+version = "0.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "32a66949e030da00e8c7d4434b251670a91556f4144941d37452769c25d58a53"
+
+[[package]]
+name = "litrs"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "11d3d7f243d5c5a8b9bb5d6dd2b1602c0cb0b9db1621bafc7ed66e35ff9fe092"
+
 [[package]]
 name = "lock_api"
 version = "0.4.12"
@@ -1451,11 +1576,11 @@ checksum = "a7a70ba024b9dc04c27ea2f0c0548feb474ec5c54bba33a7f72f873a39d07b24"
 
 [[package]]
 name = "lru"
-version = "0.12.4"
+version = "0.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "37ee39891760e7d94734f6f63fedc29a2e4a152f836120753a72503f09fcf904"
+checksum = "8a860605968fce16869fd239cf4237a82f3ac470723415db603b0e8b6c8d4fb9"
 dependencies = [
- "hashbrown",
+ "hashbrown 0.17.1",
 ]
 
 [[package]]
@@ -1566,7 +1691,7 @@ dependencies = [
  "oauth2",
  "serde",
  "serde_json",
- "thiserror",
+ "thiserror 1.0.63",
  "uuid",
 ]
 
@@ -1576,7 +1701,7 @@ version = "0.29.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "71e2746dc3a24dd78b3cfcb7be93368c6de9963d30f43a6a73998a9cf4b17b46"
 dependencies = [
- "bitflags 2.6.0",
+ "bitflags 2.13.0",
  "cfg-if",
  "cfg_aliases",
  "libc",
@@ -1619,9 +1744,9 @@ dependencies = [
 
 [[package]]
 name = "num-conv"
-version = "0.1.0"
+version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "51d515d32fb182ee37cda2ccdcb92950d6a3c2893aa280e540671c2cd0f3b1d9"
+checksum = "521739c6d2bac4aa25192232afe6841231376b2b26d4d9fae5ecf8ca5772e441"
 
 [[package]]
 name = "num-traits"
@@ -1632,6 +1757,15 @@ dependencies = [
  "autocfg",
 ]
 
+[[package]]
+name = "num_threads"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c7398b9c8b70908f6371f47ed36737907c87c52af34c268fed0bf0ceb92ead9"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "number_prefix"
 version = "0.4.0"
@@ -1646,7 +1780,7 @@ checksum = "c38841cdd844847e3e7c8d29cef9dcfed8877f8f56f9071f77843ecf3baf937f"
 dependencies = [
  "base64 0.13.1",
  "chrono",
- "getrandom",
+ "getrandom 0.2.15",
  "http 0.2.12",
  "rand",
  "reqwest 0.11.27",
@@ -1654,7 +1788,7 @@ dependencies = [
  "serde_json",
  "serde_path_to_error",
  "sha2",
- "thiserror",
+ "thiserror 1.0.63",
  "url",
 ]
 
@@ -1685,6 +1819,30 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b15813163c1d831bf4a13c3610c05c0d03b39feb07f7e09fa234dac9b15aaf39"
 
+[[package]]
+name = "palette"
+version = "0.7.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4cbf71184cc5ecc2e4e1baccdb21026c20e5fc3dcf63028a086131b3ab00b6e6"
+dependencies = [
+ "approx",
+ "fast-srgb8",
+ "libm",
+ "palette_derive",
+]
+
+[[package]]
+name = "palette_derive"
+version = "0.7.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f5030daf005bface118c096f510ffb781fc28f9ab6a32ab224d8631be6851d30"
+dependencies = [
+ "by_address",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.87",
+]
+
 [[package]]
 name = "parking_lot"
 version = "0.12.3"
@@ -1708,12 +1866,6 @@ dependencies = [
  "windows-targets 0.52.6",
 ]
 
-[[package]]
-name = "paste"
-version = "1.0.15"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "57c0d7b74b563b49d38dae00a0c37d4d6de9b432382b2892f0574ddcae73fd0a"
-
 [[package]]
 name = "pbkdf2"
 version = "0.12.2"
@@ -1765,7 +1917,7 @@ checksum = "2f38a4412a78282e09a2cf38d195ea5420d15ba0602cb375210efbc877243965"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.77",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -1788,9 +1940,9 @@ checksum = "d231b230927b5e4ad203db57bbcbee2802f6bce620b1e4a9024a07d94e2907ec"
 
 [[package]]
 name = "portable-atomic"
-version = "1.7.0"
+version = "1.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "da544ee218f0d287a911e9c99a39a8c9bc8fcad3cb8db5959940044ecfc67265"
+checksum = "c33a9471896f1c69cecef8d20cbe2f7accd12527ce60845ff44c153bb2a21b49"
 
 [[package]]
 name = "powerfmt"
@@ -1875,7 +2027,7 @@ dependencies = [
  "rustc-hash 2.0.0",
  "rustls 0.23.12",
  "socket2",
- "thiserror",
+ "thiserror 1.0.63",
  "tokio",
  "tracing",
 ]
@@ -1892,7 +2044,7 @@ dependencies = [
  "rustc-hash 2.0.0",
  "rustls 0.23.12",
  "slab",
- "thiserror",
+ "thiserror 1.0.63",
  "tinyvec",
  "tracing",
 ]
@@ -1919,6 +2071,12 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[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"
@@ -1946,28 +2104,73 @@ version = "0.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c"
 dependencies = [
- "getrandom",
+ "getrandom 0.2.15",
 ]
 
 [[package]]
 name = "ratatui"
-version = "0.28.1"
+version = "0.30.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fdef7f9be5c0122f890d58bdf4d964349ba6a6161f705907526d891efabba57d"
+checksum = "3274ba0a2c5e1bcad2a2005d20f4dc59dad26b2eb0940fb094500dba4099d57d"
 dependencies = [
- "bitflags 2.6.0",
- "cassowary",
- "compact_str",
- "crossterm",
  "instability",
+ "ratatui-core",
+ "ratatui-crossterm",
+ "ratatui-widgets",
+ "serde",
+]
+
+[[package]]
+name = "ratatui-core"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cbb175c433c8e28a809d1f5773a2ae96e68c0ce40db865cbab1020bf33ae479c"
+dependencies = [
+ "bitflags 2.13.0",
+ "compact_str",
+ "hashbrown 0.17.1",
  "itertools",
+ "kasuari",
  "lru",
- "paste",
+ "palette",
+ "serde",
  "strum",
- "strum_macros",
+ "thiserror 2.0.18",
  "unicode-segmentation",
  "unicode-truncate",
- "unicode-width",
+ "unicode-width 0.2.2",
+]
+
+[[package]]
+name = "ratatui-crossterm"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "567584a3b0e6a8203c23de40b4861497266725eb5363dbfd18a1edd603cca9f0"
+dependencies = [
+ "cfg-if",
+ "crossterm",
+ "instability",
+ "ratatui-core",
+]
+
+[[package]]
+name = "ratatui-widgets"
+version = "0.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "66e3d19bcc9130ca376277d93b60767ff121ace3be06f5f95f81dd68956407d1"
+dependencies = [
+ "bitflags 2.13.0",
+ "hashbrown 0.17.1",
+ "indoc",
+ "instability",
+ "itertools",
+ "line-clipping",
+ "ratatui-core",
+ "serde",
+ "strum",
+ "time",
+ "unicode-segmentation",
+ "unicode-width 0.2.2",
 ]
 
 [[package]]
@@ -1976,7 +2179,7 @@ version = "0.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2a908a6e00f1fdd0dfd9c0eb08ce85126f6d8bbda50017e74bc4a4b7d4a926a4"
 dependencies = [
- "bitflags 2.6.0",
+ "bitflags 2.13.0",
 ]
 
 [[package]]
@@ -1985,9 +2188,9 @@ version = "0.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ba009ff324d1fc1b900bd1fdb31564febe58a8ccc8a6fdbb93b543d33b13ca43"
 dependencies = [
- "getrandom",
+ "getrandom 0.2.15",
  "libredox",
- "thiserror",
+ "thiserror 1.0.63",
 ]
 
 [[package]]
@@ -2130,7 +2333,7 @@ checksum = "c17fa4cb658e3583423e915b9f3acc01cceaee1860e33d59ebae66adc3a2dc0d"
 dependencies = [
  "cc",
  "cfg-if",
- "getrandom",
+ "getrandom 0.2.15",
  "libc",
  "spin",
  "untrusted",
@@ -2176,19 +2379,41 @@ version = "2.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "583034fd73374156e66797ed8e5b0d5690409c9226b22d87cb7f19821c05d152"
 
+[[package]]
+name = "rustc_version"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cfcb3a22ef46e85b45de6ee7e79d063319ebb6594faafcf1c225ea92ab6e9b92"
+dependencies = [
+ "semver",
+]
+
 [[package]]
 name = "rustix"
 version = "0.38.36"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3f55e80d50763938498dd5ebb18647174e0c76dc38c5505294bb224624f30f36"
 dependencies = [
- "bitflags 2.6.0",
+ "bitflags 2.13.0",
  "errno",
  "libc",
- "linux-raw-sys",
+ "linux-raw-sys 0.4.14",
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "rustix"
+version = "1.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b6fe4565b9518b83ef4f91bb47ce29620ca828bd32cb7e408f0062e9930ba190"
+dependencies = [
+ "bitflags 2.13.0",
+ "errno",
+ "libc",
+ "linux-raw-sys 0.12.1",
+ "windows-sys 0.59.0",
+]
+
 [[package]]
 name = "rustls"
 version = "0.21.12"
@@ -2305,7 +2530,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "serde_derive_internals",
- "syn 2.0.77",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -2324,12 +2549,19 @@ dependencies = [
  "untrusted",
 ]
 
+[[package]]
+name = "semver"
+version = "1.0.28"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8a7852d02fc848982e0c167ef163aaff9cd91dc640ba85e263cb1ce46fae51cd"
+
 [[package]]
 name = "serde"
-version = "1.0.210"
+version = "1.0.228"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c8e3592472072e6e22e0a54d5904d9febf8508f65fb8552499a1abc7d1078c3a"
+checksum = "9a8e94ea7f378bd32cbbd37198a4a91436180c5bb472411e48b5ec2e2124ae9e"
 dependencies = [
+ "serde_core",
  "serde_derive",
 ]
 
@@ -2341,19 +2573,28 @@ checksum = "fb3aa78ecda1ebc9ec9847d5d3aba7d618823446a049ba2491940506da6e2782"
 dependencies = [
  "log",
  "serde",
- "thiserror",
+ "thiserror 1.0.63",
  "xml-rs",
 ]
 
+[[package]]
+name = "serde_core"
+version = "1.0.228"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "41d385c7d4ca58e59fc732af25c3983b67ac852c1a25000afe1175de458b67ad"
+dependencies = [
+ "serde_derive",
+]
+
 [[package]]
 name = "serde_derive"
-version = "1.0.210"
+version = "1.0.228"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "243902eda00fad750862fc144cea25caca5e20d615af0a81bee94ca738f1df1f"
+checksum = "d540f220d3187173da220f885ab66608367b6574e925011a9353e4badda91d79"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.77",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -2364,7 +2605,7 @@ checksum = "18d26a20a969b9e3fdf2fc2d9f21eda6c40e2de84c9408bb5d3b05d499aae711"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.77",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -2563,24 +2804,23 @@ checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
 
 [[package]]
 name = "strum"
-version = "0.26.3"
+version = "0.28.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8fec0f0aef304996cf250b31b5a10dee7980c85da9d759361292b8bca5a18f06"
+checksum = "9628de9b8791db39ceda2b119bbe13134770b56c138ec1d3af810d045c04f9bd"
 dependencies = [
  "strum_macros",
 ]
 
 [[package]]
 name = "strum_macros"
-version = "0.26.4"
+version = "0.28.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4c6bee85a5a24955dc440386795aa378cd9cf82acd5f764469152d2270e581be"
+checksum = "ab85eea0270ee17587ed4156089e10b9e6880ee688791d45a905f5b1ca36f664"
 dependencies = [
  "heck",
  "proc-macro2",
  "quote",
- "rustversion",
- "syn 2.0.77",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -2612,9 +2852,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.77"
+version = "2.0.87"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9f35bcdf61fd8e7be6caf75f429fdca8beb3ed76584befb503b1569faee373ed"
+checksum = "25aa4ce346d03a6dcd68dd8b4010bcb74e54e62c90c573f394c46eae99aba32d"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2677,7 +2917,7 @@ dependencies = [
  "cfg-if",
  "fastrand",
  "once_cell",
- "rustix",
+ "rustix 0.38.36",
  "windows-sys 0.59.0",
 ]
 
@@ -2696,7 +2936,7 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "21bebf2b7c9e0a515f6e0f8c51dc0f8e4696391e6f1ff30379559f8365fb0df7"
 dependencies = [
- "rustix",
+ "rustix 0.38.36",
  "windows-sys 0.48.0",
 ]
 
@@ -2712,7 +2952,16 @@ version = "1.0.63"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c0342370b38b6a11b6cc11d6a805569958d54cfa061a29969c3b5ce2ea405724"
 dependencies = [
- "thiserror-impl",
+ "thiserror-impl 1.0.63",
+]
+
+[[package]]
+name = "thiserror"
+version = "2.0.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4288b5bcbc7920c07a1149a35cf9590a2aa808e0bc1eafaade0b80947865fbc4"
+dependencies = [
+ "thiserror-impl 2.0.18",
 ]
 
 [[package]]
@@ -2723,7 +2972,18 @@ checksum = "a4558b58466b9ad7ca0f102865eccc95938dca1a74a856f2b57b6629050da261"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.77",
+ "syn 2.0.87",
+]
+
+[[package]]
+name = "thiserror-impl"
+version = "2.0.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ebc4ee7f67670e9b64d05fa4253e753e016c6c95ff35b89b7941d6b856dec1d5"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -2738,30 +2998,31 @@ dependencies = [
 
 [[package]]
 name = "time"
-version = "0.3.36"
+version = "0.3.51"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5dfd88e563464686c916c7e46e623e520ddc6d79fa6641390f2e3fa86e83e885"
+checksum = "85c17d80feb7334b40c484e45ed1a5273dfd8bfda537c3be2e74a06a6686f327"
 dependencies = [
  "deranged",
- "itoa",
+ "libc",
  "num-conv",
+ "num_threads",
  "powerfmt",
- "serde",
+ "serde_core",
  "time-core",
  "time-macros",
 ]
 
 [[package]]
 name = "time-core"
-version = "0.1.2"
+version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ef927ca75afb808a4d64dd374f00a2adf8d0fcff8e7b184af886c3c87ec4a3f3"
+checksum = "9e1c906769ad99c88eaa54e728060edef082f8e358ff32030cb7c7d315e81109"
 
 [[package]]
 name = "time-macros"
-version = "0.2.18"
+version = "0.2.30"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3f252a68540fde3a3877aeea552b832b40ab9a69e318efd078774a01ddee1ccf"
+checksum = "dcef1a61bdb119096e153208ec5cbec23944ce8bca13be5c7f60c634f7403935"
 dependencies = [
  "num-conv",
  "time-core",
@@ -2784,7 +3045,7 @@ checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
 
 [[package]]
 name = "tmc"
-version = "1.1.2"
+version = "1.1.3"
 dependencies = [
  "anyhow",
  "assert_cmd",
@@ -2839,7 +3100,7 @@ dependencies = [
  "shellwords",
  "tar",
  "tempfile",
- "thiserror",
+ "thiserror 1.0.63",
  "tmc-langs-framework",
  "tmc-langs-plugins",
  "tmc-langs-util",
@@ -2862,7 +3123,7 @@ dependencies = [
  "log",
  "serde",
  "serde_json",
- "thiserror",
+ "thiserror 1.0.63",
  "tmc-langs-framework",
  "tmc-langs-util",
  "walkdir",
@@ -2886,7 +3147,7 @@ dependencies = [
  "subprocess",
  "tar",
  "tempfile",
- "thiserror",
+ "thiserror 1.0.63",
  "tmc-langs-util",
  "walkdir",
  "zip",
@@ -2907,7 +3168,7 @@ dependencies = [
  "serde_json",
  "tar",
  "tempfile",
- "thiserror",
+ "thiserror 1.0.63",
  "tmc-langs-framework",
  "tmc-langs-util",
  "walkdir",
@@ -2924,7 +3185,7 @@ dependencies = [
  "serde",
  "serde-xml-rs",
  "serde_yaml",
- "thiserror",
+ "thiserror 1.0.63",
  "tmc-langs-framework",
  "tmc-langs-util",
  "zip",
@@ -2948,7 +3209,7 @@ source = "git+https://github.com/rage/tmc-langs-rust?tag=0.36.3#9313ab8ff5969757
 dependencies = [
  "log",
  "tar",
- "thiserror",
+ "thiserror 1.0.63",
  "tmc-langs-csharp",
  "tmc-langs-framework",
  "tmc-langs-java",
@@ -2976,7 +3237,7 @@ dependencies = [
  "serde",
  "serde_json",
  "sha2",
- "thiserror",
+ "thiserror 1.0.63",
  "tmc-langs-framework",
  "tmc-langs-util",
  "walkdir",
@@ -2991,7 +3252,7 @@ dependencies = [
  "log",
  "serde",
  "serde_json",
- "thiserror",
+ "thiserror 1.0.63",
  "tmc-langs-framework",
  "tmc-langs-util",
  "zip",
@@ -3012,7 +3273,7 @@ dependencies = [
  "serde_path_to_error",
  "serde_yaml",
  "tempfile",
- "thiserror",
+ "thiserror 1.0.63",
  "toml",
  "type-map",
  "walkdir",
@@ -3033,7 +3294,7 @@ dependencies = [
  "schemars",
  "serde",
  "serde_json",
- "thiserror",
+ "thiserror 1.0.63",
  "tmc-langs-util",
  "uuid",
 ]
@@ -3056,7 +3317,7 @@ dependencies = [
  "serde",
  "serde_json",
  "tempfile",
- "thiserror",
+ "thiserror 1.0.63",
  "tmc-langs-plugins",
  "tmc-langs-util",
  "url",
@@ -3192,7 +3453,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3566e8ce28cc0a3fe42519fc80e6b4c943cc4c8cef275620eb8dac2d3d4e06cf"
 dependencies = [
  "crossbeam-channel",
- "thiserror",
+ "thiserror 1.0.63",
  "time",
  "tracing-subscriber",
 ]
@@ -3205,7 +3466,7 @@ checksum = "34704c8d6ebcbc939824180af020566b01a7c01f80641264eba0999f6c2b6be7"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.77",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -3300,19 +3561,19 @@ dependencies = [
 
 [[package]]
 name = "unicode-segmentation"
-version = "1.11.0"
+version = "1.13.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d4c87d22b6e3f4a18d4d40ef354e97c90fcb14dd91d7dc0aa9d8a1172ebf7202"
+checksum = "c6f5d3c3b1bf09027a88a6bc961fc00497d651009560b5463668dc81b0fa87a8"
 
 [[package]]
 name = "unicode-truncate"
-version = "1.1.0"
+version = "2.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b3644627a5af5fa321c95b9b235a72fd24cd29c648c2c379431e6628655627bf"
+checksum = "16b380a1238663e5f8a691f9039c73e1cdae598a30e9855f541d29b08b53e9a5"
 dependencies = [
  "itertools",
  "unicode-segmentation",
- "unicode-width",
+ "unicode-width 0.2.2",
 ]
 
 [[package]]
@@ -3321,6 +3582,12 @@ version = "0.1.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0336d538f7abc86d282a4189614dfaa90810dfc2c6f6427eaf88e16311dd225d"
 
+[[package]]
+name = "unicode-width"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b4ac048d71ede7ee76d585517add45da530660ef4390e49b098733c6e897f254"
+
 [[package]]
 name = "unsafe-libyaml"
 version = "0.2.11"
@@ -3353,12 +3620,14 @@ checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
 
 [[package]]
 name = "uuid"
-version = "1.10.0"
+version = "1.23.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "81dfa00651efa65069b0b6b651f4aaa31ba9e3c3ce0137aaad053604ee7e0314"
+checksum = "144d6b123cef80b301b8f72a9e2ca4370ddec21950d0a103dd22c437006d2db7"
 dependencies = [
- "getrandom",
- "serde",
+ "getrandom 0.4.3",
+ "js-sys",
+ "serde_core",
+ "wasm-bindgen",
 ]
 
 [[package]]
@@ -3409,27 +3678,14 @@ checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
 [[package]]
 name = "wasm-bindgen"
-version = "0.2.93"
+version = "0.2.118"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a82edfc16a6c469f5f44dc7b571814045d60404b55a0ee849f9bcfa2e63dd9b5"
+checksum = "0bf938a0bacb0469e83c1e148908bd7d5a6010354cf4fb73279b7447422e3a89"
 dependencies = [
  "cfg-if",
  "once_cell",
+ "rustversion",
  "wasm-bindgen-macro",
-]
-
-[[package]]
-name = "wasm-bindgen-backend"
-version = "0.2.93"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9de396da306523044d3302746f1208fa71d7532227f15e347e2d93e4145dd77b"
-dependencies = [
- "bumpalo",
- "log",
- "once_cell",
- "proc-macro2",
- "quote",
- "syn 2.0.77",
  "wasm-bindgen-shared",
 ]
 
@@ -3447,9 +3703,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro"
-version = "0.2.93"
+version = "0.2.118"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "585c4c91a46b072c92e908d99cb1dcdf95c5218eeb6f3bf1efa991ee7a68cccf"
+checksum = "eeff24f84126c0ec2db7a449f0c2ec963c6a49efe0698c4242929da037ca28ed"
 dependencies = [
  "quote",
  "wasm-bindgen-macro-support",
@@ -3457,22 +3713,25 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.93"
+version = "0.2.118"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "afc340c74d9005395cf9dd098506f7f44e38f2b4a21c6aaacf9a105ea5e1e836"
+checksum = "9d08065faf983b2b80a79fd87d8254c409281cf7de75fc4b773019824196c904"
 dependencies = [
+ "bumpalo",
  "proc-macro2",
  "quote",
- "syn 2.0.77",
- "wasm-bindgen-backend",
+ "syn 2.0.87",
  "wasm-bindgen-shared",
 ]
 
 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.93"
+version = "0.2.118"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c62a0a307cb4a311d3a07867860911ca130c3494e8c2719593806c08bc5d0484"
+checksum = "5fd04d9e306f1907bd13c6361b5c6bfc7b3b3c095ed3f8a9246390f8dbdee129"
+dependencies = [
+ "unicode-ident",
+]
 
 [[package]]
 name = "web-sys"
@@ -3743,8 +4002,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8da84f1a25939b27f6820d92aed108f83ff920fdf11a7b19366c27c4cda81d4f"
 dependencies = [
  "libc",
- "linux-raw-sys",
- "rustix",
+ "linux-raw-sys 0.4.14",
+ "rustix 0.38.36",
 ]
 
 [[package]]
@@ -3771,7 +4030,7 @@ checksum = "fa4f8080344d4671fb4e831a13ad1e68092748387dfc4f55e356242fae12ce3e"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.77",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -3791,7 +4050,7 @@ checksum = "ce36e65b0d2999d2aafac989fb249189a141aee1f53c612c1f37d72631959f69"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.77",
+ "syn 2.0.87",
 ]
 
 [[package]]
@@ -3816,7 +4075,7 @@ dependencies = [
  "pbkdf2",
  "rand",
  "sha1",
- "thiserror",
+ "thiserror 1.0.63",
  "time",
  "zeroize",
  "zopfli",
diff --git a/Cargo.toml b/Cargo.toml
index 69554e4..1c3d3db 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,19 +12,19 @@ authors = [
 edition = "2021"
 description = "Client for downloading, testing and submitting exercises through the TestMyCode and MOOC.fi systems."
 license = "Apache-2.0"
-rust-version = "1.70.0"
+rust-version = "1.88.0"
 
 [dependencies]
 anyhow = { version = "1.0.56", features = ["backtrace"] }
 bytes = "1.4.0"
 clap = { version = "4.0.7", features = ["derive"] }
 clap_complete = "4.0.2"
-crossterm = "0.28.1"
+crossterm = "0.29.0"
 flexi_logger = "0.29.0"
 indicatif = "0.17.1"
 log = "0.4.17"
-ratatui = { version = "0.28.1", default-features = false, features = [
-  'crossterm',
+ratatui = { version = "0.30.2", default-features = false, features = [
+  "crossterm_0_29",
 ] }
 reqwest = { version = "0.12.7", default-features = false, features = [
   "blocking",
diff --git a/src/commands/courses.rs b/src/commands/courses.rs
index b50814d..206a7fa 100644
--- a/src/commands/courses.rs
+++ b/src/commands/courses.rs
@@ -98,7 +98,7 @@ mod tests {
 
         let output = String::from_utf8(output.into_inner()).unwrap();
         let output = output.lines().collect::<Vec<_>>();
-        assert!(output[0].eq(""), "first line should be empty");
+        assert!(output[0].is_empty(), "first line should be empty");
         assert!(
             output[1].eq("mooc-tutustumiskurssi"),
             "Expected 'mooc-tutustumiskurssi', got {}",
diff --git a/src/commands/exercises.rs b/src/commands/exercises.rs
index abcc198..45c65a9 100644
--- a/src/commands/exercises.rs
+++ b/src/commands/exercises.rs
@@ -189,7 +189,7 @@ mod tests {
         print_exercises(&mut io, "course_name", &exercises).unwrap();
         let output = String::from_utf8(output.into_inner()).unwrap();
         let output = output.lines().collect::<Vec<_>>();
-        assert!(output[0].eq(""), "first line should be empty");
+        assert!(output[0].is_empty(), "first line should be empty");
         let course_string = "Course name: course_name";
         assert!(
             output[1].eq(course_string),
@@ -235,7 +235,7 @@ mod tests {
 
         let output = String::from_utf8(output.into_inner()).unwrap();
         let output = output.lines().collect::<Vec<_>>();
-        assert!(output[0].eq(""), "first line should be empty");
+        assert!(output[0].is_empty(), "first line should be empty");
         let course_string = "Course name: course_name";
         assert!(
             output[1].eq(course_string),
diff --git a/src/interactive/prompt.rs b/src/interactive/prompt.rs
index 3b759dc..213d5e6 100644
--- a/src/interactive/prompt.rs
+++ b/src/interactive/prompt.rs
@@ -62,6 +62,7 @@ fn draw_terminal<B>(
 ) -> anyhow::Result<()>
 where
     B: Backend,
+    B::Error: std::error::Error + Send + Sync + 'static,
 {
     terminal.draw(|f| {
         let chunks = Layout::default()
@@ -150,6 +151,7 @@ fn event_loop<B>(
 ) -> anyhow::Result<Option<String>>
 where
     B: Backend,
+    B::Error: std::error::Error + Send + Sync + 'static,
 {
     loop {
         draw_terminal(terminal, app, prompt)?;
diff --git a/src/interactive/state.rs b/src/interactive/state.rs
index c3777be..25bc8f4 100644
--- a/src/interactive/state.rs
+++ b/src/interactive/state.rs
@@ -20,7 +20,7 @@ impl<'a, T: Clone> StatefulList<'a, T> {
         StatefulList::with_items(&[])
     }
 
-    pub fn with_items(items: &[T]) -> StatefulList<T> {
+    pub fn with_items(items: &[T]) -> StatefulList<'_, T> {
         StatefulList {
             state: ListState::default(),
             displayed: items.to_vec(),
diff --git a/src/lib.rs b/src/lib.rs
index 39617ee..1ded7f3 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,3 +1,7 @@
+// tmc-langs' LangsError/TestMyCodeClientError are large and returned by value across the
+// client API; boxing every Result isn't worth it for a CLI.
+#![allow(clippy::result_large_err)]
+
 mod cli;
 mod client;
 mod commands;
diff --git a/src/updater.rs b/src/updater.rs
index 9e3cdfc..25fd181 100644
--- a/src/updater.rs
+++ b/src/updater.rs
@@ -22,7 +22,6 @@ pub const DELAY_MILLIS_24H: u128 = 1440 * 60 * 1000;
 /// generates a new timestamp. If a new version is found, the function
 /// stashes the old executable and downloads a new one.
 /// Will run in privileged stage if needed on Windows!
-
 pub fn check_for_update(config: &mut TmcCliConfig, force: bool) -> anyhow::Result<()> {
     if force || is_it_time_yet(config)? {
         generate_time_stamp(config)?;

From 6e2fbf25bb3151ae269e0b9bccb55f1bd92e7161 Mon Sep 17 00:00:00 2001
From: Henrik Nygren <nygrenh@gmail.com>
Date: Wed, 24 Jun 2026 23:38:55 +0300
Subject: [PATCH 2/5] Fix interactive menu input handling

Handle the new key-event model: act on key press and auto-repeat but
ignore key releases, which the Windows console emits per tap and which
caused double input. Drain events buffered when a menu opens, harden
CTRL-C (match any modifier combination, restore the terminal before
exiting), and add tests for the key handling.
---
 src/interactive/prompt.rs | 173 +++++++++++++++++++++++++++++++-------
 1 file changed, 141 insertions(+), 32 deletions(-)

diff --git a/src/interactive/prompt.rs b/src/interactive/prompt.rs
index 213d5e6..fc3d50f 100644
--- a/src/interactive/prompt.rs
+++ b/src/interactive/prompt.rs
@@ -1,6 +1,6 @@
 use super::state::AppState;
 use crossterm::{
-    event::{poll, read, Event, KeyCode, KeyModifiers},
+    event::{poll, read, Event, KeyCode, KeyEvent, KeyEventKind, KeyModifiers},
     terminal::{disable_raw_mode, enable_raw_mode, EnterAlternateScreen, LeaveAlternateScreen},
     ExecutableCommand,
 };
@@ -45,6 +45,18 @@ pub fn interactive_list(prompt: &str, items: &[&str]) -> anyhow::Result<Option<S
     terminal.clear()?;
 
     let mut app = AppState::new(items);
+
+    // Discard events crossterm buffers at launch on Windows (e.g. a spurious Enter that
+    // would auto-select the first item). Best-effort: a read error must not abort.
+    #[cfg(target_os = "windows")]
+    {
+        while poll(Duration::from_secs(0)).unwrap_or(false) {
+            if read().is_err() {
+                break;
+            }
+        }
+    }
+
     let result = event_loop(&mut terminal, &mut app, prompt)?;
 
     // leave alternate screen and raw mode
@@ -108,42 +120,61 @@ where
 fn read_keys(app: &mut AppState) -> anyhow::Result<Option<Option<String>>> {
     if poll(Duration::from_millis(POLL_RATE))? {
         if let Event::Key(x) = read()? {
-            // CTRL-C is the usual stop command
-            // which is disabled by default because of raw mode
-            if x.code == KeyCode::Char('c') && x.modifiers == KeyModifiers::CONTROL {
-                // respect the interrupt and exit immediately after disabling raw mode
-                disable_raw_mode().ok();
-                std::process::exit(0);
-            }
-            let selection = match x.code {
-                KeyCode::Esc => Some(None),
-                KeyCode::Up | KeyCode::Left => {
-                    app.items.previous();
-                    None
-                }
-                KeyCode::Down | KeyCode::Right => {
-                    app.items.next();
-                    None
-                }
-                // if no selection, None
-                // else Some(Some(selection))
-                KeyCode::Enter => app.get_selected().map(Some),
-                KeyCode::Char(c) => {
-                    app.push_filter(c);
-                    None
-                }
-                KeyCode::Backspace => {
-                    app.pop_filter();
-                    None
-                }
-                _ => None,
-            };
-            return Ok(selection);
+            return handle_key_event(app, x);
         }
     }
     Ok(None)
 }
 
+/// handles a single key event, mutating `app` and returning the selection result.
+///
+/// See `read_keys` for the meaning of the `Option<Option<String>>` return value.
+fn handle_key_event(app: &mut AppState, x: KeyEvent) -> anyhow::Result<Option<Option<String>>> {
+    // Accept presses, and auto-repeat for held nav/backspace keys. Ignore other events
+    // (e.g. Windows Release) to avoid spurious input.
+    let repeat_nav = x.kind == KeyEventKind::Repeat
+        && matches!(
+            x.code,
+            KeyCode::Up | KeyCode::Down | KeyCode::Left | KeyCode::Right | KeyCode::Backspace
+        );
+    if !(x.is_press() || repeat_nav) {
+        return Ok(None);
+    }
+
+    // CTRL-C is the usual stop command
+    // which is disabled by default because of raw mode
+    if x.code == KeyCode::Char('c') && x.modifiers.contains(KeyModifiers::CONTROL) {
+        // restore the terminal before exiting
+        let _ = stdout().execute(LeaveAlternateScreen);
+        disable_raw_mode().ok();
+        std::process::exit(0);
+    }
+    let selection = match x.code {
+        KeyCode::Esc => Some(None),
+        KeyCode::Up | KeyCode::Left => {
+            app.items.previous();
+            None
+        }
+        KeyCode::Down | KeyCode::Right => {
+            app.items.next();
+            None
+        }
+        // if no selection, None
+        // else Some(Some(selection))
+        KeyCode::Enter => app.get_selected().map(Some),
+        KeyCode::Char(c) => {
+            app.push_filter(c);
+            None
+        }
+        KeyCode::Backspace => {
+            app.pop_filter();
+            None
+        }
+        _ => None,
+    };
+    Ok(selection)
+}
+
 fn event_loop<B>(
     terminal: &mut Terminal<B>,
     app: &mut AppState<'_>,
@@ -171,3 +202,81 @@ where
         }
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    fn key(code: KeyCode, kind: KeyEventKind) -> KeyEvent {
+        KeyEvent::new_with_kind(code, KeyModifiers::NONE, kind)
+    }
+
+    fn enter(kind: KeyEventKind) -> KeyEvent {
+        key(KeyCode::Enter, kind)
+    }
+
+    #[test]
+    fn enter_release_is_ignored() {
+        let items = &["eka", "toka"];
+        let mut app = AppState::new(items);
+
+        // A stray Enter release must not count as a selection.
+        let result = handle_key_event(&mut app, enter(KeyEventKind::Release)).unwrap();
+        assert_eq!(result, None);
+    }
+
+    #[test]
+    fn enter_repeat_is_ignored() {
+        let items = &["eka", "toka"];
+        let mut app = AppState::new(items);
+
+        let result = handle_key_event(&mut app, enter(KeyEventKind::Repeat)).unwrap();
+        assert_eq!(result, None);
+    }
+
+    #[test]
+    fn enter_press_selects_current_item() {
+        let items = &["eka", "toka"];
+        let mut app = AppState::new(items);
+
+        // index 0 is pre-selected by `AppState::new`
+        let result = handle_key_event(&mut app, enter(KeyEventKind::Press)).unwrap();
+        assert_eq!(result, Some(Some(String::from("eka"))));
+    }
+
+    #[test]
+    fn arrow_release_does_not_move_selection() {
+        let items = &["eka", "toka", "kolmas"];
+        let mut app = AppState::new(items);
+
+        // A stray Down release must not advance the cursor (Windows emits Press+Release per tap).
+        handle_key_event(&mut app, key(KeyCode::Down, KeyEventKind::Release)).unwrap();
+        assert_eq!(app.get_selected().unwrap(), "eka");
+
+        handle_key_event(&mut app, key(KeyCode::Up, KeyEventKind::Release)).unwrap();
+        assert_eq!(app.get_selected().unwrap(), "eka");
+    }
+
+    #[test]
+    fn down_press_moves_exactly_one_row() {
+        let items = &["eka", "toka", "kolmas"];
+        let mut app = AppState::new(items);
+
+        // One tap = one Press = one move.
+        handle_key_event(&mut app, key(KeyCode::Down, KeyEventKind::Press)).unwrap();
+        assert_eq!(app.get_selected().unwrap(), "toka");
+
+        handle_key_event(&mut app, key(KeyCode::Down, KeyEventKind::Press)).unwrap();
+        assert_eq!(app.get_selected().unwrap(), "kolmas");
+    }
+
+    #[test]
+    fn down_repeat_moves_selection() {
+        let items = &["eka", "toka", "kolmas"];
+        let mut app = AppState::new(items);
+
+        // Holding Down auto-repeats: each Repeat advances the cursor like a Press.
+        handle_key_event(&mut app, key(KeyCode::Down, KeyEventKind::Repeat)).unwrap();
+        assert_eq!(app.get_selected().unwrap(), "toka");
+    }
+}

From b48b7e6aec4fe4dcd77d9ebaff19f28a4f58288e Mon Sep 17 00:00:00 2001
From: Henrik Nygren <nygrenh@gmail.com>
Date: Wed, 24 Jun 2026 23:15:31 +0300
Subject: [PATCH 3/5] Fix inverted auto-update gate
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The --no-update branch ran the updater and the default branch printed
"No Auto-Updates" — exactly backwards. Auto-update now runs by default
on Windows, is skipped in test mode, and --no-update both disables it
and prints the notice. Make --force-update conflict with --no-update.
---
 src/cli.rs |  4 ++--
 src/lib.rs | 10 ++++------
 2 files changed, 6 insertions(+), 8 deletions(-)

diff --git a/src/cli.rs b/src/cli.rs
index ba4ebfb..9d3a0fa 100644
--- a/src/cli.rs
+++ b/src/cli.rs
@@ -17,7 +17,7 @@ pub struct Cli {
     #[arg(short = 'd', long, hide = !cfg!(windows))]
     pub no_update: bool,
     /// Force auto-update to run.
-    #[arg(short = 'u', long, hide = !cfg!(windows))]
+    #[arg(short = 'u', long, hide = !cfg!(windows), conflicts_with = "no_update")]
     pub force_update: bool,
 
     /// Only for internal testing, disables server connection.
@@ -95,7 +95,7 @@ pub enum Command {
 
 impl Command {
     pub fn requires_organization_set(&self) -> bool {
-        matches!(self, Command::Download { .. } | Command::Courses { .. })
+        matches!(self, Command::Download { .. } | Command::Courses)
     }
 }
 
diff --git a/src/lib.rs b/src/lib.rs
index 1ded7f3..8740c88 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -43,14 +43,12 @@ fn run_inner(io: &mut Io, cli: Cli) -> anyhow::Result<()> {
     #[cfg(target_os = "windows")]
     let mut config = config;
 
+    // Auto-update on Windows unless disabled (--no-update) or running in test mode.
     if cli.no_update {
-        let os = std::env::consts::OS;
-        if os == "windows" {
-            #[cfg(target_os = "windows")]
-            updater::check_for_update(&mut config, cli.force_update)?;
-        }
-    } else {
         println!("No Auto-Updates");
+    } else if !cli.testmode {
+        #[cfg(target_os = "windows")]
+        updater::check_for_update(&mut config, cli.force_update)?;
     }
 
     commands::handle(cli, io, config)

From edb6fc0c42bfaef60258e8898c8b8048f531a47d Mon Sep 17 00:00:00 2001
From: Henrik Nygren <nygrenh@gmail.com>
Date: Wed, 24 Jun 2026 23:15:44 +0300
Subject: [PATCH 4/5] Build Linux releases in a pinned Rust container

Build inside rust:1.88.0-bullseye (glibc 2.31) so binaries run on older
systems, with the cargo registry and target cached across runs. Drop the
i686 OpenSSL setup since reqwest now uses rustls.
---
 .github/workflows/linux.yml | 40 +++++++++++++++++++++++++++----------
 1 file changed, 30 insertions(+), 10 deletions(-)

diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index 6cfb691..87987d1 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -40,7 +40,7 @@ jobs:
   deploy:
     needs: test
     if: ${{ github.event_name == 'release' }}
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     strategy:
       matrix:
         target: [i686-unknown-linux-gnu, x86_64-unknown-linux-gnu]
@@ -55,18 +55,38 @@ jobs:
       - name: "Set up Cloud SDK"
         uses: google-github-actions/setup-gcloud@v2.1.1
 
-      - name: Install dependencies
-        run: |
-          sudo dpkg --add-architecture i386
-          sudo apt update
-          sudo apt install -y gcc-multilib libssl-dev:i386 # required to build for 32-bit arch
+      - name: Cache cargo registry and build artifacts
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo-container/registry
+            ~/.cargo-container/git
+            target
+          key: ${{ runner.os }}-release-cargo-${{ matrix.target }}-${{ hashFiles('Cargo.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-release-cargo-${{ matrix.target }}-
 
+      # Build inside the official Rust image on Debian bullseye (glibc 2.31, the same floor
+      # as Ubuntu 20.04) so the binaries run on older systems and the toolchain ships in the
+      # image instead of being downloaded on every run. gcc-multilib provides the 32-bit
+      # toolchain for the i686 target; reqwest uses rustls-tls, so no OpenSSL is needed. The
+      # image tag pins the toolchain to the MSRV. Cargo caches are mounted in and ownership
+      # normalised afterwards so the cache and gsutil can read the root-owned tree.
       - name: Cargo build
         run: |
-          export I686_UNKNOWN_LINUX_GNU_OPENSSL_LIB_DIR=/usr/lib/i386-linux-gnu # required to build for 32-bit arch
-          export I686_UNKNOWN_LINUX_GNU_OPENSSL_INCLUDE_DIR=/usr/include/i386-linux-gnu # required to build for 32-bit arch
-          rustup target add ${{ matrix.target }}
-          cargo build -p tmc --release --verbose --target ${{ matrix.target }}
+          mkdir -p "$HOME/.cargo-container/registry" "$HOME/.cargo-container/git"
+          docker run --rm \
+            -v "$PWD":/w -w /w \
+            -v "$HOME/.cargo-container/registry":/usr/local/cargo/registry \
+            -v "$HOME/.cargo-container/git":/usr/local/cargo/git \
+            rust:1.88.0-bullseye bash -euo pipefail -c '
+            export DEBIAN_FRONTEND=noninteractive
+            apt-get update
+            apt-get install -y gcc-multilib
+            rustup target add ${{ matrix.target }}
+            cargo build -p tmc --release --verbose --target ${{ matrix.target }}
+          '
+          sudo chown -R "$(id -u):$(id -g)" target "$HOME/.cargo-container"
 
       - name: Get the version
         id: get_version

From 566be01eef2907ffc036d437c507a998f126fb1b Mon Sep 17 00:00:00 2001
From: Henrik Nygren <nygrenh@gmail.com>
Date: Wed, 24 Jun 2026 23:16:02 +0300
Subject: [PATCH 5/5] Release 1.1.3

Bump the version and stop hard-coding installer filenames in the README.
---
 Cargo.toml | 2 +-
 README.md  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Cargo.toml b/Cargo.toml
index 1c3d3db..e71f89e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "tmc"
-version = "1.1.2"
+version = "1.1.3"
 authors = [
   "University of Helsinki <mooc@cs.helsinki.fi>",
   "HoolaBoola <jaime.heikkiladias@helsinki.fi>",
diff --git a/README.md b/README.md
index 3cc6e21..8b1176b 100644
--- a/README.md
+++ b/README.md
@@ -58,7 +58,7 @@ After restarting the terminal, this should work:
 
 ### Using the Windows installer
 
-The Windows installer can be found in the [releases](https://github.com/rage/tmc-cli-rust/releases). In most cases you will want the 64 bit version, `tmc-cli-rust-x86_64-pc-windows-msvc-v1.1.2.msi`. When a 32 bit version is required, `tmc-cli-rust-i686-pc-windows-msvc-v1.1.2.msi` is also available. After installation, the application updates automatically.
+The Windows installer can be found in the [releases](https://github.com/rage/tmc-cli-rust/releases). In most cases you will want the 64 bit version (`tmc-cli-rust-x86_64-pc-windows-msvc-*.msi`); a 32 bit version (`tmc-cli-rust-i686-pc-windows-msvc-*.msi`) is also available. After installation, the application updates automatically.
 
 ### Manual installation, additional steps