Set up nix flake with container and dev shell

flake.lock

@@ -0,0 +1,61 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1689068808,
+        "narHash": "sha256-6ixXo3wt24N/melDWjq70UuHQLxGV8jZvooRanIHXw0=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "919d646de7be200f3bf08cb76ae1f09402b6f9b4",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1691421349,
+        "narHash": "sha256-RRJyX0CUrs4uW4gMhd/X4rcDG8PTgaaCQM5rXEJOx6g=",
+        "owner": "NixOs",
+        "repo": "nixpkgs",
+        "rev": "011567f35433879aae5024fc6ec53f2a0568a6c4",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOs",
+        "ref": "nixos-23.05",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,34 @@
+{
+  description = "Matabas — databas för mat";
+
+  inputs = {
+    nixpkgs.url = "github:NixOs/nixpkgs/nixos-23.05";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+
+  outputs = { self, flake-utils, nixpkgs }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let pkgs = nixpkgs.legacyPackages.${system};
+      in rec {
+        packages = rec {
+          hello = pkgs.hello;
+          default = hello;
+        };
+        devShells.default = pkgs.mkShell {
+          packages = [ packages.default ];
+        };
+      }
+    ) // {
+      nixosConfigurations.matabas-container =
+        let pkgs = nixpkgs.legacyPackages.x86_64-linux;
+        in nixpkgs.lib.nixosSystem {
+          system = "x86_64-linux";
+          modules = [({ pkgs, ... }: {
+            boot.isContainer = true;
+            system.configurationRevision = nixpkgs.lib.mkIf (self ? rev) self.rev;
+            system.stateVersion = "23.05";
+            environment.systemPackages = [ self.packages.x86_64-linux.default ];
+          })];
+        };
+    };
+}