Your response gave me a hint -- i was just missing the relevant environmental variables from the OCI image. This is now resolved, thanks!

I am trying to run ProGet on a Linux 6.5.13 x86_64 VM and receive the following crash on startup:

Unhandled exception. System.NullReferenceException: Object reference not set to an instance of an object.
   at Inedo.ProGet.SharedConfig.ProcessUrls(IEnumerable`1 urls)+MoveNext() in C:\Users\builds\AppData\Local\Temp\InedoAgent\BuildMaster\192.168.44.60\Temp\_E561202\Src\ProGetCoreEx\Configuration\SharedConfig.cs:line 241
   at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
   at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
   at Inedo.ProGet.SharedConfig.Initialize(Boolean reloadFile) in C:\Users\builds\AppData\Local\Temp\InedoAgent\BuildMaster\192.168.44.60\Temp\_E561202\Src\ProGetCoreEx\Configuration\SharedConfig.cs:line 50
   at Inedo.ProGet.Service.Program.Main(String[] args) in C:\Users\builds\AppData\Local\Temp\InedoAgent\BuildMaster\192.168.44.60\Temp\_E561202\Src\ProGet.Service\Program.cs:line 340
   at Inedo.ProGet.Service.Program.<Main>(String[] args)

I use the following starting arguments:

/usr/local/proget/service/ProGet.Service run --mode=both

Tested with the last 2 major versions of ProGet (24.0.37, 24.0.x, and 23.x).

I am using the filesystem provided by the official OCI image as the root filesystem of the Linux VM, i.e.:

proget.inedo.com/productimages/inedo/proget:24.0.37

This makes the base OS Debian-based (at least from an initial inspection of the OCI image).

Any insight from the ProGet dev team would be greatly appreciated! Thank you!