It seems that fetching a whole folder stalls the program and bandwith is getting crippled to minimum speed.
There is a search going on right now on social media for the original authors to get in contact one last time, after that somebody else is probably porting it (again) from the OS3 sources.
Edit:
Response is in. All OS4 sources are gone or unobtainable.
If someone is start porting it, please join efforts.
