This is a simplified zlib format compressed data package based on Go's implementation: https://cs.opensource.google/go/go/+/refs/tags/go1.23.3:src/compress/zlib/reader.go which has the copyright notice:
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
The code has been updated to support compiler:
$ moon version --all
moon 0.1.20251111 (b17e236 2025-11-11) ~/.moon/bin/moon
moonc v0.6.31+b5b06ff93 (2025-11-11) ~/.moon/bin/moonc
moonrun 0.1.20251111 (b17e236 2025-11-11) ~/.moon/bin/moonrun
moon-pilot 0.0.1-df92511 (2025-11-12) ~/.moon/bin/moon-pilot