begin cerulean's rust cli

snow/flake.nix

@@ -0,0 +1,99 @@
+{
+  description = "Cerulean CLI";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11";
+    systems.url = "github:nix-systems/default";
+
+    fenix.url = "github:nix-community/fenix";
+    fenix.inputs.nixpkgs.follows = "nixpkgs";
+  };
+
+  outputs = {
+    self,
+    nixpkgs,
+    ...
+  } @ inputs: let
+    systems = import inputs.systems;
+
+    mkPkgs = system: repo:
+      import repo {
+        inherit system;
+        allowUnfree = false;
+        allowBroken = false;
+        overlays = builtins.attrValues self.overlays or {};
+      };
+
+    forAllSystems = f: nixpkgs.lib.genAttrs systems (system: f system (mkPkgs system nixpkgs));
+  in {
+    overlays.default = final: prev: {
+      libclang = prev.llvmPackages_21.libclang;
+
+      # ttywire = pkgs.rustPlatform.buildRustPackage {
+      #   pname = "cerulean";
+      #   version = "0.1.0";
+      #   src = ./.;
+      #
+      #   cargoHash = "sha256-NxFdFCuB456uBeVeqT2bsRtBrIoLdijBaga7VB9KPF8=";
+      #
+      #   # runtime dependencies (propagated out of derivation)
+      #   buildInputs = with pkgs; [
+      #     boehmgc.dev
+      #     nix.dev
+      #   ];
+      #
+      #   # build-time/shellHook dependencies (not propagates)
+      #   nativeBuildInputs = with pkgs; [
+      #     pkg-config
+      #   ];
+      #
+      #   meta = with lib; {
+      #     description = "Cerulean CLI";
+      #     homepage = "https://github.com/cry128/cerulean";
+      #     license = lib.licenses.asl20;
+      #     maintainers = with maintainers; [
+      #       cry64
+      #     ];
+      #   };
+      # };
+    };
+
+    checks = self.packages or {};
+
+    # packages = forAllSystems (
+    #   system: pkgs: rec {
+    #     inherit (pkgs) ttywire;
+    #     default = ttywire;
+    #   }
+    # );
+
+    devShells = forAllSystems (
+      system: pkgs: {
+        default = pkgs.mkShell rec {
+          shell = "${pkgs.bash}/bin/bash";
+          strictDeps = true;
+
+          packages = with pkgs; [
+            cargo
+            rustc
+            inputs.fenix.packages.${system}.complete.rustfmt
+          ];
+
+          # packages we should be able to link against
+          buildInputs = with pkgs; [
+            boehmgc.dev
+            nix.dev
+          ];
+
+          # packages we run at build time / shellHook
+          nativeBuildInputs = with pkgs; [
+            pkg-config
+            rustPlatform.bindgenHook
+          ];
+
+          LD_LIBRARY_PATH = "$LD_LIBRARY_PATH:${builtins.toString (pkgs.lib.makeLibraryPath buildInputs)}";
+        };
+      }
+    );
+  };
+}