Everything here runs in your browser. No audio is uploaded, and there is no
server doing the work. This is the forge core on a real domain so it can be
tested against the actual game — it is not the finished UI.
Preview playback is not wired up yet.
1 · pick sounds
2 · choose your audio
One file replaces every selected sound. Pick several files to
map them in order.
The real forge trims on a waveform. Leaving the end blank
packs the whole file into the VPK, which is rarely what you want for a
long track.