

Well you’re writing a Compiler with extra features to tell you where compilation failed but without actually executing the code. If the language you are trying to implement has defined a BNF for its language its quite doable and depending on the features you want to implement almost easy. There are BNF interpreters and chumsky e.g. is close to reading like a BNF. But if you’re building a language where you gotta find out the rules yourself it can take a while and finding all the edgecases can be a problem… But the project is big enough that most probably don’t finish theirs

They recently recieved a “Blauer Engel” certificate for nextcloud-server. Iirc that seal requires the user to be able to choose what he wants. So new features are OK but they have to be optional. That certificate is handed out by a german government Institution. And very recently they started handing it out to software too, with nextcloud beeing the first BIG reciever.