fix(bun): fix bun and bun-dependent packages on old CPUs

flake.lock

@@ -35,11 +35,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1781930126,
-        "narHash": "sha256-AopjjM6497f3Usb6IAZgensjtzGlYGGpJLw7DRtP67I=",
+        "lastModified": 1782533477,
+        "narHash": "sha256-2enYwf3n9GUkne9v4J3Ud6LpoG4Uarl3BaSQgRAAH7o=",
         "owner": "caelestia-dots",
         "repo": "cli",
-        "rev": "b00dabaa9351d1383dfba162f5b3575b49a126e1",
+        "rev": "e9e115568f818ee1df2d7a9e21925141b053ec6e",
         "type": "github"
       },
       "original": {
@@ -58,11 +58,11 @@
         "quickshell": "quickshell"
       },
       "locked": {
-        "lastModified": 1782013769,
-        "narHash": "sha256-3j6GU+y8RSyRAibriCePKqqU4UPf6qjabUD9cfjehcM=",
+        "lastModified": 1782636677,
+        "narHash": "sha256-u01nEjf7afRMCtRjp0LV45DmhC4/n/uPY3S/HAh/V2w=",
         "owner": "caelestia-dots",
         "repo": "shell",
-        "rev": "74e4970ab530b3d1a5cddb8424fcf0ee96443bd9",
+        "rev": "145a6795ee41e023e863681cec6c5db3b334ffc0",
         "type": "github"
       },
       "original": {
@@ -79,11 +79,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1781648708,
-        "narHash": "sha256-i9ggnF31Uq3tpdp6ZMe7YAOxjTfkB7S4WjSBfXV0uMk=",
+        "lastModified": 1782492933,
+        "narHash": "sha256-v/BH1zfHaCFqP+4Ev9PWiGy15YrpmI9wzjxRtiFhgvA=",
         "owner": "9001",
         "repo": "copyparty",
-        "rev": "d33d11321f823f58a9109298ef886044f63b02ce",
+        "rev": "4c8203016f089b38281ed922a78255146f099e7b",
         "type": "github"
       },
       "original": {
@@ -207,11 +207,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1781989573,
-        "narHash": "sha256-npfH7Zv7t1akX/ArqCNro4zU4ViPlghLaPnbEfHbCxk=",
+        "lastModified": 1782702263,
+        "narHash": "sha256-8/MG4Su7PhnynrmsVO61IeAfrK7GuUEu+E+gwbhy1QQ=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "78e7d8b13ecd7f5256a5c11ce216876164099d9f",
+        "rev": "789a35fbdeb3c46b260096daa0b321c11be527ea",
         "type": "github"
       },
       "original": {
@@ -268,11 +268,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1782030356,
-        "narHash": "sha256-h4WpMr455AfRub0FXBaon6Vcpe0waUyJ4GivIW6oyd4=",
+        "lastModified": 1782636943,
+        "narHash": "sha256-ripjZa7BBLwL1uS5VJF3s/VpZpWt5ZIQEvkJ/FJNpQw=",
         "owner": "nix-community",
         "repo": "nix-index-database",
-        "rev": "3017088b49efd404f78e3b104f553b97e4af786b",
+        "rev": "058b1f9381fa79fcda49982370a750ff92dbba43",
         "type": "github"
       },
       "original": {
@@ -283,11 +283,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1781577229,
-        "narHash": "sha256-lrp67w8AulE9Ks53n27I45ADSzbOCn4H+CNW1Ck8B+8=",
+        "lastModified": 1782467914,
+        "narHash": "sha256-pGvFkM8N0xEkIIXDe5YYfbEAvHrk4IxBrjB/x8OomhE=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "567a49d1913ce81ac6e9582e3553dd90a955875f",
+        "rev": "e73de5be04e0eff4190a1432b946d469c794e7b4",
         "type": "github"
       },
       "original": {
@@ -299,11 +299,11 @@
     },
     "nixpkgsStable": {
       "locked": {
-        "lastModified": 1781509190,
-        "narHash": "sha256-uJZs9Di8I6ciTp6jiojj0HzlNpBkud8ax5aT/O5aJkw=",
+        "lastModified": 1782498288,
+        "narHash": "sha256-8/X3yyTXiE82b38n32ItbOqfWOVBl+gKa8fILyZfR4Q=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "d6df3513510aa548c83868fd22bfddd0a8c0a0d4",
+        "rev": "3cac626ec5e3703e835f227687e88aa9e2f25701",
         "type": "github"
       },
       "original": {
@@ -466,11 +466,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1781943681,
-        "narHash": "sha256-NFHmA7H47adqiyp+0iEOyZOQhmigDqA/NBAlf4imB6U=",
+        "lastModified": 1782165805,
+        "narHash": "sha256-478kKQBvK6SYTOdN2h9jhKJv94nbXRbFMfuL1WshErg=",
         "owner": "Mic92",
         "repo": "sops-nix",
-        "rev": "420f8d2e9882911f65cfac15cc706f639ba96cca",
+        "rev": "56b24064fdcaedca53553b1a6d607fd23b613a24",
         "type": "github"
       },
       "original": {
@@ -487,11 +487,11 @@
         "systems": "systems_4"
       },
       "locked": {
-        "lastModified": 1782031037,
-        "narHash": "sha256-a7oWSyS7SN81UOqVt481yIEMDsMpaJ7GNdV6Eaz5Yqg=",
+        "lastModified": 1782633406,
+        "narHash": "sha256-JOSMk12GgnTLVlUSCuKkqyUF6cw82wl7t7e1WuFfg5s=",
         "owner": "Gerg-L",
         "repo": "spicetify-nix",
-        "rev": "9cb27462cfd20edac174353f1e95bc03aa888863",
+        "rev": "5ff9a6ca9dcbad7cccea2c97d30237468b16feda",
         "type": "github"
       },
       "original": {
@@ -507,11 +507,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1781754174,
-        "narHash": "sha256-Q5hp6+DYj23gMAvhLXBYNan9EwY9C+oxyU+M1TJDwgo=",
+        "lastModified": 1782700116,
+        "narHash": "sha256-E63+nvH3jkAt/hBxhMa5aykstXdqRvBSeqNRDpQNv78=",
         "owner": "nix-community",
         "repo": "srvos",
-        "rev": "18ae1c654f60fb8dafb40c48fe25eb09f1aaddb2",
+        "rev": "d45cf79058f2d42c0b0dd7912bedb5d14faa00ed",
         "type": "github"
       },
       "original": {
@@ -587,11 +587,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1781847955,
-        "narHash": "sha256-1OSYOGuJp/NoODmSHjsz+6TB/kSilJ+BsFihjY7TTnc=",
+        "lastModified": 1782624757,
+        "narHash": "sha256-pqFaCAV+g8H+p0kE4vYn9ZgcEFvt644zGy7SyCdf9c8=",
         "owner": "youwen5",
         "repo": "zen-browser-flake",
-        "rev": "4bca251cd556677f7b765ff324d1638ae215be13",
+        "rev": "907465791e7064d86d37964dd95e23280dfb68da",
         "type": "github"
       },
       "original": {

flake.nix

@@ -96,7 +96,8 @@
     flake-utils.lib.eachDefaultSystem (
       system: let
         inherit (self) outputs;
-        pkgs = nixpkgs.legacyPackages.${system};
+
+        pkgs = import nixpkgs {inherit system;};
       in {
         formatter = pkgs.alejandra;
         devShells.default = pkgs.mkShell {
@@ -111,7 +112,7 @@
         packages = {
           homeConfigurations = let
             extraSpecialArgs = {inherit inputs outputs system;};
-            pkgs = nixpkgs.legacyPackages.x86_64-linux;
+            pkgs = import nixpkgs {inherit system;};
             defaultUserModules = [
               inputs.sops-nix.homeManagerModules.sops
               inputs.spicetify.homeManagerModules.default

packages/bun-baseline.nix

@@ -0,0 +1,69 @@
+# Baseline variant of Bun for x86_64-linux CPUs without AVX2 support.
+# The regular `bun` from nixpkgs requires AVX2 and crashes with SIGILL on older hardware.
+#
+# Version is typically kept in sync with nixpkgs's `bun` (passed via `callPackage`).
+{
+  lib,
+  stdenvNoCC,
+  fetchurl,
+  autoPatchelfHook,
+  unzip,
+  makeBinaryWrapper,
+  glibc,
+  stdenv,
+  version ? "1.3.13",
+}: let
+  # When updating `version`, compute the new hash with:
+  #   nix store prefetch-file \
+  #     "https://github.com/oven-sh/bun/releases/download/bun-v${version}/bun-linux-x64-baseline.zip"
+  hash = "sha256-nYokKSpwaAkCBdqsCloiP19pc29Sh+N7+I07QDHtx1A=";
+in
+  stdenvNoCC.mkDerivation {
+    pname = "bun-baseline";
+    inherit version;
+
+    src = fetchurl {
+      url = "https://github.com/oven-sh/bun/releases/download/bun-v${version}/bun-linux-x64-baseline.zip";
+      inherit hash;
+    };
+
+    nativeBuildInputs =
+      [unzip]
+      ++ lib.optionals stdenvNoCC.hostPlatform.isLinux [
+        autoPatchelfHook
+        makeBinaryWrapper
+      ];
+
+    buildInputs = lib.optionals stdenvNoCC.hostPlatform.isLinux [
+      glibc
+      (lib.getLib stdenv.cc.cc)
+    ];
+
+    dontConfigure = true;
+    dontBuild = true;
+
+    unpackPhase = ''
+      runHook preUnpack
+      mkdir -p source
+      cd source
+      ${lib.getExe unzip} -q $src
+      runHook postUnpack
+    '';
+
+    installPhase = ''
+      runHook preInstall
+      mkdir -p $out/bin
+      find . -type f -name "bun" -not -path "./__MACOSX/*" -exec cp {} $out/bin/bun \;
+      chmod +x $out/bin/bun
+      ln -s $out/bin/bun $out/bin/bunx
+      runHook postInstall
+    '';
+
+    meta = {
+      description = "Bun JavaScript runtime (baseline variant, works without AVX2)";
+      homepage = "https://bun.sh";
+      license = lib.licenses.mit;
+      platforms = ["x86_64-linux"];
+      mainProgram = "bun";
+    };
+  }

users/modules/desktop/caelestia.nix

@@ -44,7 +44,7 @@ in {
       };
       launcher = {
         enabled = true;
-        showOnHover = true;
+        showOnHover = false;
         useFuzzy = {
           apps = true;
           schemes = true;

users/modules/dev/ai/default.nix

@@ -16,6 +16,11 @@ in {
 
   options.home.dev.ai = {
     enable = mkEnableOption "Enables AI features";
+    lmStudio = mkOption {
+      default = cfg.enable;
+      example = true;
+      description = "Enables LM Studio. Enabled by default when AI is enabled.";
+    };
     mcpServers = mkOption {
       inherit (jsonFormat) type;
       default = {};
@@ -31,7 +36,7 @@ in {
         ollama.enable = mkDefault cfg.enable;
         opencode.enable = mkDefault cfg.enable;
       };
-      packages = [pkgs.lmstudio];
+      packages = lists.optional cfg.lmStudio pkgs.lmstudio;
     };
     programs.mcp = mkIf (cfg.mcpServers != {}) {
       enable = true;

users/modules/dev/ai/opencode.nix

@@ -1,15 +1,39 @@
 {
   config,
   lib,
-  inputs,
   pkgs,
   ...
 }:
 with lib; let
-  inherit (pkgs.stdenv.hostPlatform) system;
   cfg = config.home.dev.ai.opencode;
-  defaultPackageCli = inputs.opencode.packages.${system}.opencode;
-  defaultPackageDesktop = inputs.opencode.packages.${system}.desktop;
+
+  # On x86_64-linux CPUs without AVX2, use the baseline bun variant
+  # when building opencode - the regular `bun` from nixpkgs requires
+  # AVX2 and crashes on older hardware, such as my Thinkpad x220’s
+  # Intel Core i5 2640M.
+  needsBaselineBun =
+    pkgs.stdenv.hostPlatform.isx86_64 && !pkgs.stdenv.hostPlatform.avx2Support;
+
+  defaultPackageCli =
+    if needsBaselineBun
+    then
+      pkgs.opencode.override {
+        bun = pkgs.callPackage ../../../../packages/bun-baseline.nix {
+          version = pkgs.bun.version;
+        };
+      }
+    else pkgs.opencode;
+
+  defaultPackageDesktop =
+    if needsBaselineBun
+    then
+      pkgs.opencode-desktop.override {
+        bun = pkgs.callPackage ../../../../packages/bun-baseline.nix {
+          version = pkgs.bun.version;
+        };
+      }
+    else pkgs.opencode-desktop;
+
   corsList = domains: lists.remove "" (lists.forEach (strings.splitString "," domains) trim);
 in {
   options.home.dev.ai.opencode = {
@@ -66,9 +90,9 @@ in {
     };
   };
   config.programs.opencode = mkIf cfg.enable {
-    inherit (cfg) enable tui;
+    inherit (cfg) enable tui package;
     enableMcpIntegration = true;
-    extraPackages = with pkgs; [uv];
+    extraPackages = with pkgs; [uv] ++ lists.optional cfg.desktop.enable cfg.desktop.package;
     settings =
       {
         server = mkIf cfg.web.mdns.enable {

users/phundrak/host/gampo.nix

@@ -2,6 +2,7 @@
   imports = [../home.nix];
   home = {
     cli.nh.flake = "${config.home.homeDirectory}/.dotfiles";
+    dev.ai.lmStudio = false;
     desktop.hyprland.host = "gampo";
     phundrak.sshKey.content = builtins.readFile ../keys/id_gampo.pub;
   };