feat: added devshell support

.gitignore

@@ -0,0 +1 @@
+.direnv

default/.envrc

@@ -0,0 +1,2 @@
+nix_direnv_watch_file ./flake.nix
+use flake

default/.gitignore

@@ -0,0 +1 @@
+.direnv

default/devshell.toml

@@ -0,0 +1,12 @@
+[devshell]
+name = "Patricks tolle devshell"
+
+packages = [
+    "nil",
+	"sl"
+]
+
+[[env]]
+name = "lol"
+value = "lel"
+

default/flake.nix

@@ -4,20 +4,23 @@
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
     flake-utils.url = "github:numtide/flake-utils";
+    devshell.url = "github:numtide/devshell";
   };
 
   outputs = {
     self,
     nixpkgs,
     flake-utils,
+    devshell,
   }:
     flake-utils.lib.eachDefaultSystem (system: let
-      pkgs = import nixpkgs {inherit system;};
+      pkgs = import nixpkgs {
+        inherit system;
+        overlays = [devshell.overlays.default];
+      };
     in {
-      devShells.default = pkgs.mkShell {
-        packages = with pkgs; [
-          st
-        ];
+      devShell = pkgs.devshell.mkShell {
+        imports = [(pkgs.devshell.importTOML ./devshell.toml)];
       };
     });
 }