Comment by 01HNNWZ0MV43FF

I've had fun embedding Lua a couple times, but as with wasm I almost never have a case where I need to run new code without being able to recompile the whole binary, so I don't get to use it often.

The most fun was when I made a game engine ("engine") in C++ that used Lua for all the game logic. The fast debug cycles are very useful there. Maybe I should still do that for Rust gamedev, since Rust notoriously compiles slowly.

The second-most fun was an IRC bot that could reload its Lua logic without disconnecting. Nowadays I'd write a bouncer and just let the main process restart. (Or use wasm, a wasm IRC bot would be good...)

The third-most fun was using Lua as a Turing-complete configuration language. If I needed an array of something, I just made Lua make an array, instead of generating Lua code.

One of the least fun was the Blender plugin that exported 3D models as generated Lua. If I did that one again today, I'd just use MsgPack or some ad-hoc binary format.