move to nix flake

README.MD

@@ -40,8 +40,10 @@ of a Docker image. To build a docker image, run `nixpacks build .`
 
 ### Nix
 
-This project also has a Nix file to set up a reproducible development
-environment. To access this, run `nix-shell`.
+This project also has a Nix Flake to set up a reproducible development
+environment. To access this, run `nix develop`.
+This is recommended for development, as it will automatically install all the dependencies you need in an isolated
+environment.
 
 ## Running
 

flake.nix

@@ -0,0 +1,52 @@
+{
+  description = "DevDenBot";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    treefmt-nix.url = "github:numtide/treefmt-nix";
+
+  };
+
+
+  outputs = inputs@{ flake-parts, ... }:
+    flake-parts.lib.mkFlake { inherit inputs; } {
+      imports = [
+        inputs.treefmt-nix.flakeModule
+      ];
+      systems = [ "x86_64-linux" "aarch64-linux" "aarch64-darwin" "x86_64-darwin" ];
+      perSystem = { config, self', inputs', pkgs, system, ... }: {
+        treefmt.config = {
+          projectRootFile = "./flake.nix";
+          package = pkgs.treefmt;
+          programs.nixpkgs-fmt.enable = true;
+        };
+
+        devShells.default = pkgs.mkShell {
+
+          buildInputs = with pkgs; [
+            nodejs-18_x
+
+            nodePackages.yarn
+
+            nodePackages.typescript
+            nodePackages.typescript-language-server
+
+            sentry-cli
+            gccStdenv
+            python39
+            deno
+            yarn
+            cairo
+            pango
+            pkg-config
+            nodePackages.node-gyp
+            libpng
+            librsvg
+            pixman
+
+          ] ++ (if system == "aarch64-darwin" then [ pkgs.darwin.apple_sdk.frameworks.CoreText ] else [ ]);
+        };
+      };
+      flake = { };
+    };
+}