Please note : These manual were written by brave VarAC users who wanted to contribute to the VarAC community. They may not be up to date... but they are super helpful!
I want to thank those VarAC users who contributed their precious time to put these manuals together.
The complete end-to-end VarAC V8.4.4 manual
By Pat - ON2AD - @on2ad.pat
VarAC high level overview presentation
Other manuals
Installation guide by KP3IV
By Ivan Valentin - KP3IV - @Ivan_KP3IV
Using VarAC Tags for auto info exchange
By Gary Mitchelson - NC3Z - @NC3Z Gary
Adding frequencies to your VarAC frequency dropdown
By Gary Mitchelson - NC3Z - @NC3Z Gary
EESDR V2 - VarAC Configuration
By Rick Langford - N8SDR - @N8SDR
Also available by @N8SDR a Video tutorial
Useful videos
VarAC HF Digital Instructional Video From A - Z (47min - by KW3KW)
VarAC Installation and Settings With VARA HF (25min - by K0PIR)
VarAC: Install, Configure and Use (38min - By AG6AG)
How to Make Contacts with VarAC for Digital Ham Operators (30min - by K0PIR)
VarAC chat client for VARA HF - Better than FT8! (8min - By tech Minds)
VarAC Explained - technical deep dive (62min - By 4Z1AC & NC3Z) NON ZOMBIE HF Digital Mode Really Yes and it's called VarAC (40min - By N8SDR)
File transfer
By Gary Mitchelson - NC3Z - @NC3Z Gary
Multiple instance of VarAC
By Gary Mitchelson - NC3Z - @NC3Z Gary
Integrating VarAC with your QSO logging
By Ivan Valentin - KP3IV - @Ivan_KP3IV