added flake for markdown

markdown/flake.lock

@@ -0,0 +1,27 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1698611440,
+        "narHash": "sha256-jPjHjrerhYDy3q9+s5EAsuhyhuknNfowY6yt6pjn9pc=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "0cbe9f69c234a7700596e943bfae7ef27a31b735",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

markdown/flake.nix

@@ -1,11 +1,23 @@
 {
-  description = "A very basic flake";
+  description = "A template flake for development with gcc";
 
-  outputs = { self, nixpkgs }: {
-
-    packages.x86_64-linux.hello = nixpkgs.legacyPackages.x86_64-linux.hello;
-
-    packages.x86_64-linux.default = self.packages.x86_64-linux.hello;
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+  };
 
+  outputs = { self, nixpkgs, ... }:
+    let
+      system = "x86_64-linux";
+      pkgs = import nixpkgs {
+        inherit system;
+      };
+    in {
+      devShell.x86_64-linux = pkgs.mkShell rec {
+        name = "markdown";
+        packages = with pkgs; [
+          marksman
+        ];
+        shellHook = ''export PS1="[\u@gcc-devel:\W]\$ "'';
+      };
     };
 }