Can someone please help me understand how to mod Rogue Tower ***on Steam Deck?***

note: I got these working without issue on my Windows PC.

I've tried countless times to get mods running on my Steam Deck, to no avail. I followed the guides on modding, but none of them address this. I've tried Manual Install, thunderstore method (Cant get it to install), Rmodman (I was able to DL and unzip folder. AppImage launched fine, but loading the game modded results in Vanilla game launching)

Anyone able to mod Rogue Tower on Steam Deck? if so, please help! I love this game and have sunk 136 hours (40 in last 2 weeks) but I'm hitting the limit of what I can handle without QoL changes.

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