diff --git a/Formula/bzip2.rb b/Formula/bzip2.rb
new file mode 100644
index 0000000..9ba28c7
--- /dev/null
+++ b/Formula/bzip2.rb
@@ -0,0 +1,69 @@
+class Bzip2 < Formula
+  desc "Freely available high-quality data compressor"
+  homepage "https://sourceware.org/bzip2/"
+  url "https://sourceware.org/pub/bzip2/bzip2-1.0.8.tar.gz"
+  sha256 "ab5a03176ee106d3f0fa90e381da478ddae405918153cca248e682cd0c4a2269"
+  license "bzip2-1.0.6"
+
+  livecheck do
+    url "https://sourceware.org/pub/bzip2/"
+    regex(/href=.*?bzip2[._-]v?(\d+(?:\.\d+)+)\.t/i)
+  end
+
+  bottle do
+    rebuild 2
+    sha256 cellar: :any_skip_relocation, arm64_sonoma:   "f148a0cf9cec0d1711b5bd16c18047e0a9933acec37bfec30a182f29ae364577"
+    sha256 cellar: :any_skip_relocation, arm64_ventura:  "52f70f97b2f8f2c6bc309e55970ed03ccd1b8110cf5f15fc16c2a930180a99f7"
+    sha256 cellar: :any_skip_relocation, arm64_monterey: "bcc8f2e728b154d43e76e8e81f77e934d905b8868b7be69e3b9b40b5868f7c34"
+    sha256 cellar: :any_skip_relocation, arm64_big_sur:  "12f184d77bb72cc7d9278af9bd34fd74c610f7aa144559e2aa2d9f4a4b09bd76"
+    sha256 cellar: :any_skip_relocation, sonoma:         "0aa9de4f40daf644d2c5745e35a20fac2babda8df0218e58bd471d0132ba8457"
+    sha256 cellar: :any_skip_relocation, ventura:        "2cf2591f8865d9a806736a6f1b74f0905477b5520dd730f025aa12d4c5e0749b"
+    sha256 cellar: :any_skip_relocation, monterey:       "fc4dd056738e20b1c850c6834405e27071a992f7671137306c1764c7c0eef350"
+    sha256 cellar: :any_skip_relocation, big_sur:        "d222e089bf7b4ab714b150ad754cb76b88b548f57c4bdbbaa4857d6e0541a096"
+    sha256 cellar: :any_skip_relocation, x86_64_linux:   "a731afa70daaafec28359b4f10f1c68455c1955ae66cdbb6b6d52eee277bbd3e"
+  end
+
+  keg_only :provided_by_macos
+
+  def install
+    inreplace "Makefile", "$(PREFIX)/man", "$(PREFIX)/share/man"
+
+    system "make", "install", "PREFIX=#{prefix}"
+    return if OS.mac?
+
+    # Install shared libraries
+    system "make", "-f", "Makefile-libbz2_so", "clean"
+    system "make", "-f", "Makefile-libbz2_so"
+    lib.install "libbz2.so.#{version}", "libbz2.so.#{version.major_minor}"
+    lib.install_symlink "libbz2.so.#{version}" => "libbz2.so.#{version.major}"
+    lib.install_symlink "libbz2.so.#{version}" => "libbz2.so"
+
+    # Create pkgconfig file based on 1.1.x repository.
+    # https://gitlab.com/bzip2/bzip2/-/blob/master/bzip2.pc.in
+    (lib/"pkgconfig/bzip2.pc").write <<~EOS
+      prefix=#{opt_prefix}
+      exec_prefix=${prefix}
+      bindir=${exec_prefix}/bin
+      libdir=${exec_prefix}/lib
+      includedir=${prefix}/include
+
+      Name: bzip2
+      Description: Lossless, block-sorting data compression
+      Version: #{version}
+      Libs: -L${libdir} -lbz2
+      Cflags: -I${includedir}
+    EOS
+  end
+
+  test do
+    testfilepath = testpath + "sample_in.txt"
+    zipfilepath = testpath + "sample_in.txt.bz2"
+
+    testfilepath.write "TEST CONTENT"
+
+    system "#{bin}/bzip2", testfilepath
+    system "#{bin}/bunzip2", zipfilepath
+
+    assert_equal "TEST CONTENT", testfilepath.read
+  end
+end
diff --git a/Formula/unzip.rb b/Formula/unzip.rb
new file mode 100644
index 0000000..295781f
--- /dev/null
+++ b/Formula/unzip.rb
@@ -0,0 +1,78 @@
+class Unzip < Formula
+  desc "Extraction utility for .zip compressed archives"
+  homepage "https://infozip.sourceforge.io/UnZip.html"
+  url "https://downloads.sourceforge.net/project/infozip/UnZip%206.x%20%28latest%29/UnZip%206.0/unzip60.tar.gz"
+  version "6.0"
+  sha256 "036d96991646d0449ed0aa952e4fbe21b476ce994abc276e49d30e686708bd37"
+  revision 4
+
+  bottle do
+    cellar :any_skip_relocation
+    sha256 "06aeb3114e2a030970f0d05424e9f2b2f845a2a5643065f173ba6a70e99970a3" => :mojave
+    sha256 "0e76c4b9f38e8de22409e666894400b95340271144e44bd408975a8d0100b942" => :high_sierra
+    sha256 "5445d1be98f82d7d4d4a01f930790d0745c845cdbf1a7ea23d07f7fc295d6f90" => :sierra
+  end
+
+  keg_only :provided_by_macos
+
+  # Upstream is unmaintained so we use the Debian patchset:
+  # https://packages.debian.org/sid/unzip
+  patch do
+    url "https://deb.debian.org/debian/pool/main/u/unzip/unzip_6.0-22.debian.tar.xz"
+    sha256 "f3c80c1e3917d59cb2fe72f0431159c919f2df7fc96f5b539c91cc96fc02ecfa"
+    apply %w[
+      patches/01-manpages-in-section-1-not-in-section-1l.patch
+      patches/02-this-is-debian-unzip.patch
+      patches/03-include-unistd-for-kfreebsd.patch
+      patches/04-handle-pkware-verification-bit.patch
+      patches/05-fix-uid-gid-handling.patch
+      patches/06-initialize-the-symlink-flag.patch
+      patches/07-increase-size-of-cfactorstr.patch
+      patches/08-allow-greater-hostver-values.patch
+      patches/09-cve-2014-8139-crc-overflow.patch
+      patches/10-cve-2014-8140-test-compr-eb.patch
+      patches/11-cve-2014-8141-getzip64data.patch
+      patches/12-cve-2014-9636-test-compr-eb.patch
+      patches/13-remove-build-date.patch
+      patches/14-cve-2015-7696.patch
+      patches/15-cve-2015-7697.patch
+      patches/16-fix-integer-underflow-csiz-decrypted.patch
+      patches/17-restore-unix-timestamps-accurately.patch
+      patches/18-cve-2014-9913-unzip-buffer-overflow.patch
+      patches/19-cve-2016-9844-zipinfo-buffer-overflow.patch
+      patches/20-cve-2018-1000035-unzip-buffer-overflow.patch
+    ]
+  end
+
+  def install
+    system "make", "-f", "unix/Makefile",
+      "CC=#{ENV.cc}",
+      "LOC=-DLARGE_FILE_SUPPORT",
+      "D_USE_BZ2=-DUSE_BZIP2",
+      "L_BZ2=-lbz2",
+      "macosx",
+      "LFLAGS1=-liconv"
+    system "make", "prefix=#{prefix}", "MANDIR=#{man1}", "install"
+  end
+
+  test do
+    (testpath/"test1").write "Hello!"
+    (testpath/"test2").write "Bonjour!"
+    (testpath/"test3").write "Hej!"
+
+    system "/usr/bin/zip", "test.zip", "test1", "test2", "test3"
+    %w[test1 test2 test3].each do |f|
+      rm f
+      refute_predicate testpath/f, :exist?, "Text files should have been removed!"
+    end
+
+    system bin/"unzip", "test.zip"
+    %w[test1 test2 test3].each do |f|
+      assert_predicate testpath/f, :exist?, "Failure unzipping test.zip!"
+    end
+
+    assert_match "Hello!", File.read(testpath/"test1")
+    assert_match "Bonjour!", File.read(testpath/"test2")
+    assert_match "Hej!", File.read(testpath/"test3")
+  end
+end
diff --git a/Formula/xz.rb b/Formula/xz.rb
new file mode 100644
index 0000000..06b74ca
--- /dev/null
+++ b/Formula/xz.rb
@@ -0,0 +1,63 @@
+# Upstream project has requested we use a mirror as the main URL
+# https://github.com/Homebrew/legacy-homebrew/pull/21419
+class Xz < Formula
+  desc "General-purpose data compression with high compression ratio"
+  homepage "https://tukaani.org/xz/"
+  # The archive.org mirror below needs to be manually created at `archive.org`.
+  url "https://downloads.sourceforge.net/project/lzmautils/xz-5.4.4.tar.gz"
+  mirror "https://tukaani.org/xz/xz-5.4.4.tar.gz"
+  mirror "https://archive.org/download/xz-5.4.4/xz-5.4.4.tar.gz"
+  mirror "http://archive.org/download/xz-5.4.4/xz-5.4.4.tar.gz"
+  sha256 "aae39544e254cfd27e942d35a048d592959bd7a79f9a624afb0498bb5613bdf8"
+  license all_of: [
+    :public_domain,
+    "LGPL-2.1-or-later",
+    "GPL-2.0-or-later",
+    "GPL-3.0-or-later",
+  ]
+
+  bottle do
+    sha256 cellar: :any, arm64_sonoma:   "2e78578e241975899342fa4ad4ca4315a4e74117696af09440cf2ce485febebb"
+    sha256 cellar: :any, arm64_ventura:  "ba318d89eea54f33cc3613b1cb69ca4217a8f961e59026418e569e8421afbb8c"
+    sha256 cellar: :any, arm64_monterey: "c8a9e7812c258a3b5043c0207b8044ba099a0a4a97d3ab5314a0dbd171fff3f4"
+    sha256 cellar: :any, arm64_big_sur:  "1857edbbd38cff88854e529670e708e6d87e9d01641e291efee79cafa82fe5b2"
+    sha256 cellar: :any, sonoma:         "bc3b9885851178a5363c88917f7a439af880ec4ecdac24b0061608c5963b6bf6"
+    sha256 cellar: :any, ventura:        "4c25f68798c0b4c9b869e78fdfbd9cd7f8f723c51ea56d643b5644456288d69e"
+    sha256 cellar: :any, monterey:       "39a76706744e6f78f883c38e800d277bc6df71186313cc5fa362072d6c79f991"
+    sha256 cellar: :any, big_sur:        "7bc66bbf17c331e226b65947a7b2c326a883bc70ccdd13127802612713ae1cc2"
+    sha256               x86_64_linux:   "f68637417bc856ba59f1ec25f7fcb0ccba14a9d53557837dcf2ab0ddb652fb8b"
+  end
+
+  def install
+    system "./configure", "--disable-debug",
+                          "--disable-dependency-tracking",
+                          "--disable-silent-rules",
+                          "--prefix=#{prefix}"
+    system "make", "check"
+    system "make", "install"
+  end
+
+  test do
+    path = testpath/"data.txt"
+    original_contents = "." * 1000
+    path.write original_contents
+
+    # compress: data.txt -> data.txt.xz
+    system bin/"xz", path
+    refute_predicate path, :exist?
+
+    # decompress: data.txt.xz -> data.txt
+    system bin/"xz", "-d", "#{path}.xz"
+    assert_equal original_contents, path.read
+
+    # Check that http mirror works
+    xz_tar = testpath/"xz.tar.gz"
+    stable.mirrors.each do |mirror|
+      next if mirror.start_with?("https")
+
+      xz_tar.unlink if xz_tar.exist?
+      system "curl", "--location", mirror, "--output", xz_tar
+      assert_equal stable.checksum.hexdigest, xz_tar.sha256
+    end
+  end
+end