GIMP 2.10 Plug-In Template
The GIMP Plug-In Template is an empty GIMP Plug-In that does nothing. It also has a GUI that allows to control how it achieves this task. But best of all, it comes with a complete setup for autoconf , automake , internationalisation and all these things you never wanted to know about.
Thanks to the GIMP Plug-In Template you don’t need to worry about all these things. Just download the tarball, add some magic image manipulation routines and voilà, your own GIMP plug-in.
Grab the latest release from download.gimp.org/pub/gimp/plugin-template/ .
Note: this template might be a bit outdated yet should still mostly work for plug-ins for GIMP 2.10.