This server is intended to allow you to control your loom from any phone, tablet or other device that has wifi and a web browser.
For for usage and installation instructions please see the documentation.
Warning: this software has not yet been tested on a real loom.
The documentation from Séguin is good, so I think the code is very close.
Meanwhile, trying it cannot hurt your loom, the only risk is that it will do nothing or raise the wrong shafts. I think it more likely that it will work, but may show incorrect status, as I had to make a guess about what one of the less important status bits means.
Initially I suggest running the server with command-line option -v (verbose) so you have more information for filing a ticket at github.
Links: