Hi, The code of my module is in the Github repo belo (sorry about the licensing, the format, being on Github, etc). I also attached the MacOS crash report. I hope it helps. Sorry, but I am just running Emacs and I really do not have the time to dig more into its guts. I get the .dylib and move it in the `load-path`. Doing M-x load-library crashes Emacs. Maybe I am just doing something very stupid. You tell me. https://github.com/marcoxa/platel Thank you for your work. All the best Marco On Sat, Feb 10, 2024 at 8:33 AM Eli Zaretskii wrote: > > From: Marco Antoniotti > > Date: Fri, 9 Feb 2024 23:23:18 +0100 > > > > I just tried M-x load-library on a .dylib I created to test the > > module/extension writing facility. The library is very simple and > > follows the example in the documentation. > > > > Sorry, EMacs just crashed and I don't know what other info to send you. > > The crash backtrace information is one kind of data we could find > useful. The source code of your module is another. > > Thanks. >