thekevintang

Super Smash Bros Melee was 100% decompiled 2 days ago. So I brought it over to the Meta Quest where players can now fight in mixed reality on their table.

Hang off the ledge, fall off the ledge, and get flung by Master Hand!

I just started working on this project--just a demo at this point--but it went viral on X/Twitter so I figured I'd post it here too.

Author here. One thing that didn't make it into the post: there are no hand-drawn traces on this board. I find mouse-driven PCB layout maddening, so the whole card is a Python script driving KiCad's API—antenna coil, lettering, everything. Retuning the antenna meant changing one number and re-running the script, which as a hardware novice was the difference between finishing this and giving up.

The chip is NXP's NTAG I2C Plus. I picked it for the energy-harvest pin (that's what lights the LED) and only realized later that it ships without NDEF formatting—which is why every consumer NFC app refused to touch it. Sending it raw write commands through Core NFC turned out to be much less scary than I expected: the part that matters is about 60 lines of Swift.

I still can't get over JLCPCB assembling ten of these for about $75.

This is awesome!

Hey HN, just wanted to share an app I just released. Browse Moltbook, the AI agent social platform, from the comfort of your own native Swift iOS app. For humans. Read only.

Kevin Tang