I haven't looked back all 350 pages so I don't know if someone else already did this but I got myself a Nintendo Switch recently and after modding it I wanted to play some ren'py games.
Using uyjulian's wonderful
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I compressed some of the audio assets and changed the nro icon and metadata to this game's and made a "port".
I have only tested the first 10 minutes of gameplay and so far it runs well tho I can't guarantee it won't crash later on.
Feel free to give it a try, this requires a hacked switch.
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Extract the content to the root of your microSD and run homebrew menu with full memory (no applet mode).
The initial launch of the game will take a LOOONG time since it needs to load the assets (mine took ~2min) so don't panic if it shows black screen for a while.
After the initial loading, the game should run fine.
You can use your pc save by copying the *.save files to /Ren'Py Data/WT SILVER
Ren'Py Data should be placed in the root of your SD