RSIEdit is a VERY WIP GUI for creating/editing RSI files and converting existing DMI files to the RSI format.
It supersedes both the old RSI Editor and RSI.py. (RSI.py being replaced by RSIEdit's Importer).
You'll need .NET 5 and an IDE. A binary will be shipped when the Editor is more stable.
For now just run Editor/Program.cs main. (Although it's mainly too unstable to use at this time).