Babashka has saved me a lot of time. I actually think it is the quickest and easiest way to get started learning Clojure, to a point. No startup time didn't seem like a big deal for my workflow until I got instant startup time when running script, and starting repls -- The kind of repl where you can inspect and act on anything in your program.

Babashka tasks is fantastic too! Multi-threaded, simple, and very few surprises.