nix: create initial flake

devShells/flake-module.nix

@@ -0,0 +1,17 @@
+{
+  perSystem =
+    {
+      pkgs,
+      ...
+    }:
+    {
+      devShells.default = pkgs.mkShell {
+        packages = [
+          pkgs.nil
+          pkgs.nixfmt-rfc-style
+          pkgs.cargo
+          pkgs.rust-analyzer
+        ];
+      };
+    };
+}

flake.lock

@@ -0,0 +1,77 @@
+{
+  "nodes": {
+    "crane": {
+      "locked": {
+        "lastModified": 1752946753,
+        "narHash": "sha256-g5uP3jIj+STUcfTJDKYopxnSijs2agRg13H0SGL5iE4=",
+        "owner": "ipetkov",
+        "repo": "crane",
+        "rev": "544d09fecc8c2338542c57f3f742f1a0c8c71e13",
+        "type": "github"
+      },
+      "original": {
+        "owner": "ipetkov",
+        "repo": "crane",
+        "type": "github"
+      }
+    },
+    "flake-parts": {
+      "inputs": {
+        "nixpkgs-lib": "nixpkgs-lib"
+      },
+      "locked": {
+        "lastModified": 1751413152,
+        "narHash": "sha256-Tyw1RjYEsp5scoigs1384gIg6e0GoBVjms4aXFfRssQ=",
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "rev": "77826244401ea9de6e3bac47c2db46005e1f30b5",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1752687322,
+        "narHash": "sha256-RKwfXA4OZROjBTQAl9WOZQFm7L8Bo93FQwSJpAiSRvo=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "6e987485eb2c77e5dcc5af4e3c70843711ef9251",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-lib": {
+      "locked": {
+        "lastModified": 1751159883,
+        "narHash": "sha256-urW/Ylk9FIfvXfliA1ywh75yszAbiTEVgpPeinFyVZo=",
+        "owner": "nix-community",
+        "repo": "nixpkgs.lib",
+        "rev": "14a40a1d7fb9afa4739275ac642ed7301a9ba1ab",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "nixpkgs.lib",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "crane": "crane",
+        "flake-parts": "flake-parts",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,48 @@
+{
+  description = "Lila language";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
+
+    flake-parts.url = "github:hercules-ci/flake-parts";
+
+    crane.url = "github:ipetkov/crane";
+  };
+
+  outputs =
+    inputs@{ flake-parts, crane, ... }:
+    flake-parts.lib.mkFlake { inherit inputs; } {
+      imports = [
+        ./devShells/flake-module.nix
+      ];
+
+      systems = [
+        "x86_64-linux"
+        "aarch64-linux"
+      ];
+
+      perSystem =
+        { pkgs, lib, ... }:
+        let
+          craneLib = crane.mkLib pkgs;
+
+          pestFilter = path: _type: (builtins.match ".*\.pest$" path) != null;
+          sourceFilter = path: type: (craneLib.filterCargoSources path type) || (pestFilter path type);
+
+          lilac-crate = craneLib.buildPackage ({
+            src = lib.cleanSourceWith {
+              src = ./.;
+              filter = sourceFilter;
+              name = "source";
+            };
+          });
+        in
+        {
+          checks = {
+            inherit lilac-crate;
+          };
+
+          packages.lilac = lilac-crate;
+        };
+    };
+}