Goals are either Upskilling or self learning Any guidelines about design patterns? I'm ok learning something for the sake of it. Tired of wfh and sitting in m

Goals are either Upskilling or self learning Any guidelines about design patterns? I'm ok learning something for the sake of it. Tired of wfh and sitting in my house. I learnt Go a few years ago just for the sake of it. I was planning to learn compiler construction and create a toy language or create an sqlite alternative for fun