The web version of the game now supports touch controls, so if you have a fairly recent Android/iOS device you should be able to load it up, walk around the gallery and paint using the touchscreen.
Touch the left side of the screen to move and the right side to look around.
The web version doesn't support Steam login so you'll have to create a non-steam account in the game if you want to be logged in. If you have the deluxe edition and would like to use it in the web version, message me in the Discord and I'll give it to your web account.
Web/Mobile version: https://swsteffes.itch.io/different-strokes
Discord Invite: https://discord.gg/7r7MtVmEnh
Speaking of the Discord, I collaborated with the artist Drenn from the Discord to make this little minigame that is a reference to an ongoing joke in the community.
I think it's pretty fun, and it has an online leaderboard!
https://swsteffes.itch.io/cat-stack
You can now toggle run/walk by tapping the shift key.