Fog VS Remotely

I heard about devbox [1] but I haven't tried it yet. Perhaps it could suit your needs.

Back in the day I used "Norton Ghost" to create a full image of a just-installed windows just in case I needed to go back in time. Windows includes a snapshot feature built-in but I did not really trusted it. These days you can use a "sysprep" tool [2] to create a similar system snapshot. Make a partition and keep everything you don't want deleted on drive D: or something :-).

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1: https://www.jetpack.io/devbox

2: like https://www.ntlite.com or https://fogproject.org

For provisioning the machines base image consider FOG it uses PXE and can remotely provision dozens of machines using multicast.

Same. We set up 1 device how we want to, then use FOG to clone the other devices

With standard computers, I usually deploy something like the fog project and automate the process over pxe with scheduled reboots. I guess you could do that as well with your VMs but that seems overkill.

you could setup a PXE server and automate installs. you could also clone them and reapply the image as needed. https://fogproject.org/ or lookup CloneZilla both are open source

Free: https://fogproject.org/ or https://clonezilla.org/

Microsoft used to have a free tool called SteadyState to do this, but it's been discontinued for a while. It took a different approach of undoing changes rather than restoring from image but it worked great with Kiosk mode. There are remote management tools that can wipe and reimage managed machines, most of them don't require an AD domain. As an example FOG Project.

Following the comments in this thread, I should see an input for Server URL when building the client application with GitHub actions, however it's not there. Yes I forked the official GitHub repo.

Are you sure? It seems to be thriving under new management.

Site to site VPN if you have access to your locations' firewalls, otherwise some raspberry pis and https://github.com/immense/Remotely or any RMM.

I have another suggestion, have a look at Remotely. I only just looked into this and spun up a container to play around with. It's very similar to TeamViewer in that:

The closets open source alternative to Tactical RMM, I would say it's Immense Networks Remotely. It offers unattended remote access, as well as quicksupport feature like Teamviewer. It also has limited support for running scripts on one or many hosts which in effect allows doing some functions like that of Tactical RMM, however it doesn't give your same detailed device inventory as Tactical RMM, it doesn't monitor performance and you can't setup alarms as you can in TRMM. https://github.com/immense/Remotely

if you feel comfortable self hosting: https://github.com/immense/Remotely

Edit: For anyone who wants to follow: https://github.com/immense/Remotely/issues/553