Dictionary of Latin synonymes, Ramshorn (1860). Computer version for desktop and mobile devices, contains keys and scanned pages (images).
Also, other dictionaries, complete or in progress.
If you want to help, I have several simple tasks:
- cutting images (removing margins) in ScanTailor. It would take 5-7 days working 1-2 hours daily (579 pages).
- collecting keys from articles — long but full of fun task, very good language (Latin-Latin dictionary)