Penguins Are Cute

JRM Launcher (Source)
An alternative way of launching JRM that doesn't need to be done via a browser. Less useful now that the game can be launched by other browsers, but can still come in handy.

Minhoulib (readme/changelog)
This allows you to play on Tenhou's Windows client for free. It doesn't modify the client, so it has to be run whenever you run Tenhou.
If either of the above stop working, feel free to send me an e-mail and I'll try to fix it. It might take a while before I notice otherwise.

Other stuff can likely be found on my Github page.

mino [at] minomino 。org