It can be extremely slow, so you may wish to switch to SCREEN 3, 4 or 6 before running. This reduces the time it takes to run to about 20, 5 or 1 minute, down from the 5- or 1-and-a-half hours of SCREEN 0 and 1. Though it also means fewer digits on your screen.
As discovered by SlithyMatt, screen mode 6 has a bug in R41, which the dev units have shipped with. Please use R42 (or newer) if picking that mode.
If your VERA doesn't do FX, you can find the old version here:
Some links:
- GitHub page (source code, all releases)
- Blog post (an airy-fairy overview)
- 2.0 blog post (mentions VERA FX but I couldn't be bothered writing more)
- itch.io page (same download as here)