cargo optimizations

users/tao/cargo.nix

@@ -0,0 +1,38 @@
+{ pkgs, ... }: {
+  home.file.".cargo/config.toml".text = ''
+    [alias]
+    rr = "run --release"
+
+    [build]
+    target = "x86_64-unknown-linux-musl"
+    rustc-wrapper = "${pkgs.sccache}/bin/sccache"
+    rustflags = ["-Z", "threads=8"]
+
+    [unstable]
+    codegen-backend = true
+
+    [provile.dev]
+    debug = 0
+    strip = "debuginfo"
+    opt-level = 1
+    lto = "off"
+    codegen-backend = "cranelift"
+
+    [profile.dev.package."*"]
+    # slow clean build for faster incrementals
+    opt-level = 3
+
+    [profile.release]
+    incremental = true
+    codegen-units = 1
+    lto = "fat"
+
+    [target.x86-unknown-linux-musl]
+    # linker = "musl-gcc"
+    linker = "clang"
+    rustflag = ["-C", "target-cpu=native", "link-arg=ld-path=${pkgs.mold}/bin/mold"]
+
+    # https://benw.is/posts/how-i-improved-my-rust-compile-times-by-seventy-five-percent
+    # jonhoo
+  '';
+}

users/tao/home.nix

@@ -2,9 +2,9 @@
   imports = [
     (import ./helix.nix { inherit pkgs inputs; })
     # ./hyprland.nix
+    ./cargo.nix
   ];
 
-
   programs = {
     jujutsu = {
       enable = true;
@@ -54,34 +54,6 @@
     };
   };
 
-  home.file.".cargo/config.toml".text = ''
-    [alias]
-    rr = "run --release"
-    
-    [build]
-    target = "x86_64-unknown-linux-musl"
-    rustc-wrapper = "${pkgs.sccache}/bin/sccache"
-    
-    [unstable]
-    codegen-backend = true
-    
-    [provile.dev]
-    debug = 0
-    strip = "debuginfo"
-    lto = "off"
-    codegen-backend = "cranelift"
-
-    [profile.release]
-    incremental = true
-    codegen-units = 1
-    lto = "fat"
-
-    [target.x86-unknown-linux-musl]
-    # linker = "musl-gcc"
-    # linker = "clang"
-    rustflag = ["-C", "target-cpu=native", "link-arg=ld-path=${pkgs.mold}/bin/mold"]
-  '';
-
   home.username = "tao";
   home.homeDirectory = "/home/tao";
   home.stateVersion = "23.11";