Modding talk:Installing SMAPI on Steam Deck
Launching SMAPI Through Steam Deck
If you're launching Stardew through Proton, rather than using the linux version, this line, placed in Stardew's launch options, will launch SMAPI instead of Stardew. Should someone make a note of this?
echo "%command%" | sed -e 's/Stardew Valley.exe/StardewModdingAPI.exe/g' | sh