Sort of off-topic, but before building a shared library, I strongly recommend reading up on Jeff Atwood's "Rule of Threes". It's harder than most people think,

Sort of off-topic, but before building a shared library, I strongly recommend reading up on Jeff Atwood's "Rule of Threes". It's harder than most people think, and I've seen them do far more harm than good because authors aren't disciplined & lack domain expertise. The biggest mistake is thinking "Something is always better than nothing" when in fact that something can easily become your biggest liability. If you must do it, keep it as minimalist and focused as possible, and don't hand the task to junior-level people; hand it to someone who recognizes that it's 10x harder than it looks. https://blog.codinghorror.com/the-delusion-of-reuse https://blog.codinghorror.com/the-delusion-of-reuse https://blog.codinghorror.com/rule-of-three/ https://blog.codinghorror.com/rule-of-three/