There was a change in PekWM: https://github.com/pekwm/pekwm/commit/21fb4f3e0635ee64461fb0c9e4a217bae621e542 Since PekWM version 0.3.1, the "&" sign is no longer needed at the end of the exec line.
The install targets for the binary and for the plugins are still missing. Could you add them too?
Decompress SVGZ app icon into SVG
Set window icon
All modern software use Git nowadays, so I think it would be the best choice.
Git is much better than SVN.
Git is supported by SourceForge, it should be easy to switch.
Switch from svn to git