EngineFwk
I have published the base of my code when I do custom programming with PHP.
EngineFwk is the name of my modest Framework, that is, the set of libraries that I use in my custom projects to do the basic configuration tasks, access to the database, sending emails, process monitoring, authentication, etc.
I published it because I feel proud of it. I don't expect it to have an entourage, but maybe someone will look at it and find ideas they like or simply appreciate its balance between simplicity and capability.
I have assumed the effort of documenting it minimally to give it the love it deserves.
Although there are companies that obviously must protect their know-how, the community in general tends to share their knowledge, their tricks, etc.
EngineFwkCode in GitHub