I finally managed to correctly install the ManicTime server on my Synology NAS using Docker. Given the Docker tool provided on the Synology I had to find a workaround to get the admin username and password entered during the initial setup.
In addition to the instruction on the ManicTime Docker page (https://registry.hub.docker.com/r/manictime/manictimeserver), on the Synology you need to perform the following steps:
Start the ManicTime image in Docker. When needed, change the container name.
Then go to the advanced settings and open the Volume tab. Here you must bind a directory on your NAS (I used a folder named ‘Data’ nested in a dedicated Docker folder) to the \app\Data map from ManicTime.
Then open the Network tab. Here I ticked the box to allow this container to use the same network as the host. I.e. the 8080 port must be available / not in use by any other app!
Next open the Environment tab. First add to variables: ADMIN with the e-mail account for the administrator as value and PASSWORD with the password to be used as its value.
Next I clicked Apply and started the server.
Check the log and terminal whether the username and password are accepted. Then you can find ManicTime using the Network address of the host with port 8080 (http://<your server name or IP address>:8080).

It is started in 2018, is it possible now?

I will like to test it on ARM raspberry Pi. I have RP2, RP3 and I could buy RP4

+1 for QNAP support. I find QNAP more dependable than Synology between version changes.

Hi, I use a Synology D216se NAS as my office's server.
It would be great to use ManicTime Server with it. Is there any solution for that?

I have a Synology DS214+ with CPU MARVELL Armada XP MV78230. Does it work there too?

I think the current Linux version should work.
So either try Linux version or Docker.

https://www.manictime.com/teams/download

https://hub.docker.com/r/manictime/manictimeserver/

here I am - I can test it on a DS218+ which has an INTEL Celeron J3355

ManicTime Server now runs on Linux and Mac, there is also Docker support.
Currently we only tested it on Intel 64 bit, but we can also make builds for ARM, if we can get some testers.

Is there any update or maybe a beta version for testing?

NAS yes! For a small office, running the server off a QNAP, MyCloud, Synology, or similar NAS drive would be ideal.

would love to use this on our NAS

.Net core, we will try to port the server in a couple of months.

Is there any news on the port to .Net Core ?

Any updates on this?

I would also prefer to use the server side on our Synology NAS! Hope this will be heard and soon you will release such a plugin.

@MTSupport - That's really good to hear. Understand it's a big undertaking but it should be a worthy one. Definitely worth waiting for a linux port and I think Docker containers would be great.

One less VM to run on my server! :)

Currently ManicTime is windows based so docker would not help. You still cant run windows apps on Linux even if there is a Docker container.
By the end of the year I hope the server will run on .Net core, which would mean it will also run on Linux. Then we can also create a Docker. But until we have a Linux version there is no way to run it on Nas.

Agreed that Docker is probably a better way to go than a straight Synology port however as the MT server is currently a Windows based software and I'm unaware of any Windows-on-Docker containers that run on a Linux host this whole concept might be a ways off.

If the whole of the server is written in .NET (and not just portions) I think there are some .NET ports for linux that might make it easier. (Mono is a .net port I believe, but I'm not a dev so can't say how complete it or any .net port is)

I'd definitely like to see a linux based MT server. From there a Docker container should be easy enough

Given Docker being available on (certain models?) of Synlogy NAS, it might cover more bases to create a docker container for the ManicTime server, rather than one specific to Synology.