Well, I have userlibs that add functionality for my development. I have about 30 or 40 additional functions (or should that be 'procedures

that add things I am used to in other languages. They just make writing the code easier and behave as if they are part of the compiler - perfect.
My customers get executable binary only so they have no idea how I build them.
Purelibraries are an excellent feature of Purebasic - unique for a compiler in my software experience over the last 40 years.
I have long wished it was possible to create these libraries using 'official' purebasic tools but failing that I've been using Tailbite.
Tailbite quit working because asm layout changed and (in 5.30 at least) functions in the assembler are not currently decorated with comments - hopefully the comments will be reinstated next release.
In the meantime, I rewrote my libraries in assembler so I'm safe for now.
I had a look at the Tailbite source and (although I don't know for sure) it looks like it has been continuously modified over a long period of time and a refactor would not go amiss. The maintainers of it have my great admiration (and sympathy).