Add nix flake with devshell, formatting, build and checks

.gitignore

@@ -26,3 +26,12 @@ build.sh
 
 # the following line was added with nvim by Shea because its annoying to clear every so often
 .vscode/bookmarks.json
+
+# Nix things
+## nix build output
+result
+## direnv config + local state
+.envrc
+.direnv
+## auto-generated pre-commit config
+.pre-commit-config.yaml

.vscode/settings.json

@@ -12,5 +12,7 @@
   },
   "[json]": {
     "editor.defaultFormatter": "oxc.oxc-vscode"
-  }
+  },
+  "nixEnvSelector.nixFile": "${workspaceFolder}/flake.nix",
+  "nixEnvSelector.useFlakes": true
 }

flake.nix

@@ -0,0 +1,169 @@
+# SPDX-License-Identifier: AGPL-3.0
+{
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    flake-parts.url = "github:hercules-ci/flake-parts";
+    git-hooks.url = "github:cachix/git-hooks.nix";
+    git-hooks.inputs.nixpkgs.follows = "nixpkgs";
+    treefmt-nix.url = "github:numtide/treefmt-nix";
+    treefmt-nix.inputs.nixpkgs.follows = "nixpkgs";
+  };
+
+  outputs =
+    inputs@{ flake-parts, ... }:
+    flake-parts.lib.mkFlake { inherit inputs; } {
+      imports = [
+        inputs.git-hooks.flakeModule
+        inputs.treefmt-nix.flakeModule
+      ];
+
+      systems = [
+        "x86_64-linux"
+        "aarch64-linux"
+        "x86_64-darwin"
+        "aarch64-darwin"
+      ];
+
+      perSystem =
+        {
+          config,
+          pkgs,
+          lib,
+          ...
+        }:
+        let
+          self = inputs.self;
+
+          packageJson = builtins.fromJSON (builtins.readFile ./package.json);
+
+          mkPnpmCheck =
+            name: script:
+            pkgs.stdenv.mkDerivation (finalAttrs: {
+              pname = "sable-${name}";
+              inherit (packageJson) version;
+              src = lib.cleanSource ./.;
+
+              pnpmDeps = pkgs.fetchPnpmDeps {
+                pnpm = pkgs.pnpm_10;
+                pname = "sable";
+                inherit (finalAttrs) version src pnpmInstallFlags;
+                fetcherVersion = 3;
+                hash = "sha256-9QIBOF1d7Z086IsOAHpOayKA3uNY0e5imYQixHKFXxw=";
+              };
+
+              pnpmInstallFlags = [ "--ignore-scripts" ];
+
+              nativeBuildInputs = [
+                pkgs.nodejs_24
+                pkgs.pnpm_10
+                (pkgs.pnpmConfigHook.override { pnpm = pkgs.pnpm_10; })
+              ];
+
+              buildPhase = ''
+                runHook preBuild
+                pnpm run ${script}
+                runHook postBuild
+              '';
+
+              installPhase = ''
+                runHook preInstall
+                touch $out
+                runHook postInstall
+              '';
+
+              doCheck = false;
+            });
+        in
+        {
+          treefmt = {
+            projectRootFile = "flake.nix";
+            programs = {
+              nixfmt.enable = true;
+              oxfmt.enable = true;
+            };
+            settings.global.excludes = [
+              "dist"
+              "node_modules"
+              "pnpm-lock.yaml"
+              "pnpm-workspace.yaml"
+              "package.json"
+              "LICENSE"
+              "CHANGELOG.md"
+              "./changeset"
+            ];
+          };
+          pre-commit.settings.hooks = {
+            treefmt = {
+              enable = true;
+              package = config.treefmt.build.wrapper;
+            };
+          };
+
+          packages.sable = pkgs.stdenv.mkDerivation (finalAttrs: {
+            pname = "sable";
+            inherit (packageJson) version;
+            src = lib.cleanSource ./.;
+
+            pnpmDeps = pkgs.fetchPnpmDeps {
+              pnpm = pkgs.pnpm_10;
+              pname = "sable";
+              inherit (finalAttrs) version src pnpmInstallFlags;
+              fetcherVersion = 3;
+              hash = "sha256-9QIBOF1d7Z086IsOAHpOayKA3uNY0e5imYQixHKFXxw=";
+            };
+
+            # ignoring knope for building
+            pnpmInstallFlags = [ "--ignore-scripts" ];
+
+            nativeBuildInputs = [
+              pkgs.nodejs_24
+              pkgs.pnpm_10
+              (pkgs.pnpmConfigHook.override { pnpm = pkgs.pnpm_10; })
+            ];
+
+            env.VITE_BUILD_HASH = self.shortRev or self.dirtyShortRev or "";
+            env.VITE_IS_RELEASE_TAG = "false";
+
+            buildPhase = ''
+              runHook preBuild
+              pnpm run build
+              runHook postBuild
+            '';
+
+            installPhase = ''
+              runHook preInstall
+              cp -r dist $out
+              runHook postInstall
+            '';
+          });
+
+          packages.default = config.packages.sable;
+
+          checks = {
+            build = config.packages.sable;
+            lint = mkPnpmCheck "lint" "lint";
+            fmt = mkPnpmCheck "fmt" "fmt:check";
+            test = mkPnpmCheck "test" "test:run";
+            typecheck = mkPnpmCheck "typecheck" "typecheck";
+            knip = mkPnpmCheck "knip" "knip";
+          };
+
+          devShells.default = pkgs.mkShell {
+            packages = with pkgs; [
+              nodejs_24
+              corepack
+              pnpm_10
+              vitejs
+              oxlint
+              oxfmt
+              knope
+              typescript
+              typescript-language-server
+              nil
+              nixd
+            ];
+            shellHook = config.pre-commit.installationScript;
+          };
+        };
+    };
+}

oxfmt.config.ts

@@ -1,6 +1,6 @@
-import { defineConfig } from 'oxfmt';
+import type { OxfmtConfig } from 'oxfmt';
 
-export default defineConfig({
+export default {
   printWidth: 100,
   tabWidth: 2,
   singleQuote: true,
@@ -15,4 +15,4 @@ export default defineConfig({
     'CHANGELOG.md',
     './changeset',
   ],
-});
+} satisfies OxfmtConfig;