I love me some mini pcs, I replaced most of my home servers with mini pcs. You will probably find the actual usage of the 5850U is under 20W 99% of the time.
I have 5700U in a proxmox cluster running 3 VMs and ~80 docker containers and it runs it like a champ and under 18W each with sub 3 minute high availability fail over.
I posted recently about the new rolling block log feature and have a witness node running on 6-8W N100 mini pc.
I'm probably going to be upgrading my mini pc proxmox cluster to the MS-01 which has dual SFP+ 10Gbit, which is great as I have a 10Gbit SFP+ backplane with plenty of spare ports. Right now the cluster uses 2.5Gbit for replication.
sounds interesting. hive witness node on 6-8W? thats awesome.
I'm glad you are able to do all these things. It is hard for us to get all these good stuff in India. I can buy it from the US through a friend but warrenty problems and if something goes wrong, investment goes waste. So I'm still thinking.