I am trying to maintain an absolute pile of shite because the previous lead dev needed to reinvent every wheel in an undocumented untested way. On boarding deve

I am trying to maintain an absolute pile of shite because the previous lead dev needed to reinvent every wheel in an undocumented untested way. On boarding developers takes longer. Bugs are more difficult to fix. You are in my opinion a bad developer for having that attitude. Being able to know when and when not to use a library is an important skill. As with everything, it's a trade off and you seem to not be aware of one side.