@cblgh So, what I need is basically a general utility rom that I'll use everywhere, I'm going to make it look like the Atari TOS
https://en.wikipedia.org/wiki/File:TOS_1.04_(Rainbow_TOS).png
The idea will be that I can always work on something, press F4, navigate the desktop to manage my files, but this will include a chr image previewer, 8-bit pcm audio player, hex editor as part of the file browser.
So I can draw something in nasu, F4 to the manager, pick a tile from the desktop rom, and rename it and preview it all at once.
@cblgh right now I use 6 different roms to do something that could be much more fun together in a coesive little environment.
For example, right now I'm looking for a synth sample, and I have these folders with hundreds of sounds, but no way to navigate and preview them, I could make a sound player with a browser, but now, almost all the roms I made have file browsers in them and it's starting to be too redundant.