diff --git a/pak_src/README.md b/pak_src/README.md
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+This contains the source code for pak.
+
+Rather than a nested git repo, it is simply copy/pasted from upstream, and contains a "bin" dir where there are binaries for Linux and Windows.
+The Linux binaries were compiled myself, the Windows ones were from myfreeer's releases, as he only offered windows builds.
+These are copied when running ./setup during the Thorium build to the out/thorium dir for the installer to include.
+
+The original README.md from chrome-pak-customizer was renamed to README.orig, so that this would show explaining what this dir is.
+
+Credit goes to:
+https://github.com/myfreeer/
+
+And the original repo is:
+https://github.com/myfreeer/chrome-pak-customizer