miniblog.

Every time I implement an interpreter with recursion, I regret it. As soon as I want TCO, or userland control of stack limits, or resumable exceptions, I need my own stack. This is awkward because it's an upfront design decision. Changing the stack model is a big refactoring.

Clippy has a ton of clever lints I haven't seen before. E.g. it suggests that `let _v = println!("hello");` could be `println!("hello");` because a variable of type () is pointless. Warning about recursion in main is an excellent idea too.

Scheme and Common Lisp are much more different than I realised. They have very different error handling models, object systems, approaches to documentation (e.g. use of docstrings), not to mention conventions on iteration, recursion and early termination.