It seems there is no way to have scripts run after everything else. Normally I’d use window.onload or similar things, but all that’s been and gone by the time any script is run anyway. So I tried defer. Normally defer means that script will run after non-defer scripts. That would be useful, but the defer attribute isn’t heeded by the engine, currently.

https://perchance.org/085unhhfqe#edit

For now I’m going to try using a [code block] just to have it run later. But obviously that won’t be sufficient for all situations. So it still would be useful to have some callback or addEventListener thingy to use to run code after perchance has done everything it does.