feat(build): Add initial Nix build derivation

default.nix

@@ -0,0 +1,16 @@
+# Nix derivation to build a release version of journaldriver.
+#
+# Note: This does not currently use Carnix due to an issue with
+# linking against the `systemd.dev` derivation for libsystemd.
+
+{ pkgs ? import <nixpkgs> {}}:
+
+with pkgs; rustPlatform.buildRustPackage {
+  name        = "journaldriver";
+  version     = "0.1.0";
+  cargoSha256 = "05iwidi66f0lssbkgn13rnvlqmajdbdp859wv2a1xqvi8fcpqsmy";
+
+  src = ./.;
+
+  buildInputs = [ pkgconfig openssl systemd.dev ];
+}