I have developed my own Joystick gamepad support for Roblox using HttpService and NodeJS server to get axis inputs from my physical device. Additionally I used Roblox Studio Mod Manager to remove HttpService requests limits because otherwise I would hit the 500 requests per minute within seconds.
Here is how input axis look like.
I am also planning to make flight simulator gear support when I find some free time.
This is great! The method I used, which is finicky at best, is using a 3rd party software to bind my steering wheel rotation to an xbox joystick. I used A-Chassis system on a car, which automatically has XBOX console support, and was able to steer the in game car with my Logitech G29. It’s not optimal what so ever, since it would require players to download a 3rd party software, like mentioned earlier. Nicely done!