nix: add basic nix packaging

flake.lock

@@ -0,0 +1,43 @@
+{
+  "nodes": {
+    "flake-utils": {
+      "locked": {
+        "lastModified": 1644229661,
+        "narHash": "sha256-1YdnJAsNy69bpcjuoKdOYQX0YxZBiCYZo4Twxerqv7k=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "3cecb5b042f7f209c56ffd8371b2711a290ec797",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1644193793,
+        "narHash": "sha256-ggCI5LCXwkUJQwjpkr9qDFbQMiK3JvAfeNR4Uy0ny5Q=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "521e4d7d13b09bc0a21976b9d19abd197d4e3b1e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-21.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,26 @@
+{
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-21.11";
+    flake-utils.url = "github:numtide/flake-utils";
+  };
+  outputs = { self, nixpkgs, flake-utils }:
+    flake-utils.lib.eachDefaultSystem (system: let
+      pkgs = import nixpkgs {
+        inherit system;
+      };
+    in {
+      devShell = pkgs.mkShell {
+        inputsFrom = [
+          self.packages.${system}.ltl2ba
+        ];
+      };
+
+      packages = {
+        ltl2ba = pkgs.stdenv.mkDerivation {
+          name = "ltl2ba";
+          src = ./.;
+          nativeBuildInputs = [ pkgs.autoreconfHook ];
+        };
+      };
+    });
+}