@NebulousDragon It sounds like you already know the answer here? Run on an emulator that allows you to meet the requirements for submitting runs. if the OpenEmu frontend can't do that, use the emulator directly or find a different front end that can

Delta appears to be an iOS emulator using a snes9x backend. If it's using an up-to-date version of snes9x it should be okay, but I don't know how to determine that.

Generally leaderboards are created when 2-3 people have run a category, not just one. perhaps you can talk the mods into creating one with just one run for this, although it seems kind of similar to low% no damage for that.

in any case you'll get much more response in the discord than on here.

You will probably have more luck joining the discord and asking in there.

this wiki pages explains how to get Lonk at the beginning (thats the getting knocked into a doorway glitch) https://alttp-wiki.net/index.php/Lonk

For the uncle jump thing, i'd recommend just joining the discord and asking in there. I'm not aware of a good resource explaining it that I can easily link to.

Runs done on original SNES using flashcarts can be submitted as being run on SNES hardware.

Here's a video explaining how to do that, it's called a "stair clip" or "stairs clip."