Init flake

flake.lock

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+{
+  "nodes": {
+    "jovian": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1682442245,
+        "narHash": "sha256-k1DlJCHQgEix/Be8m4MZlNYWocv7NxlPiLcPTXgcs+w=",
+        "owner": "Jovian-Experiments",
+        "repo": "Jovian-NixOS",
+        "rev": "4fe665707364b3c4228f66895f1b6316634ceabc",
+        "type": "github"
+      },
+      "original": {
+        "owner": "Jovian-Experiments",
+        "repo": "Jovian-NixOS",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1682303062,
+        "narHash": "sha256-x+KAADp27lbxeoPXLUMxKcRsUUHDlg+qVjt5PjgBw9A=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "f5364316e314436f6b9c8fd50592b18920ab18f9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-22.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "jovian": "jovian",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

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+{
+  description = "A very basic flake";
+
+  inputs = {
+    jovian = {
+      url = "github:Jovian-Experiments/Jovian-NixOS";
+      flake = false;
+    };
+
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-22.11";
+  };
+
+  outputs = { jovian, nixpkgs, ... }:
+    let inherit (nixpkgs) lib; in
+    {
+      nixosConfigurations.jovian = lib.nixosSystem {
+        modules = [
+          "${jovian}/modules"
+
+          {
+            # avoid asserts ...
+            boot.loader.grub.devices = [ "/dev/sda" ];
+            fileSystems."/".device = "/dev/sda1";
+
+            # ... and warnings ...
+            networking.networkmanager.enable = true;
+            system.stateVersion = "23.05";
+
+            # ... and build unfree packages
+            nixpkgs.config.allowUnfreePredicate = pkg: builtins.elem (lib.getName pkg) [
+              "steam"
+              "steam-jupiter-original"
+              "steam-run"
+              "steamdeck-hw-theme"
+            ];
+
+            jovian.steam.enable = true;
+          }
+        ];
+
+        system = "x86_64-linux";
+      };
+    };
+}