Second that. yunohost is perfect for all in one self hosting solution for small groups. As for hardware requirenments, for 10 peeps you could get away with any VPS (then based on the needs you can check if to upgrade). If you want to self-host on your own hardware most likely a minipc like Hp’s prodesk with 16-32GB RAM would do.
Yunohost for sure. And start simple. One service
Second that. yunohost is perfect for all in one self hosting solution for small groups. As for hardware requirenments, for 10 peeps you could get away with any VPS (then based on the needs you can check if to upgrade). If you want to self-host on your own hardware most likely a minipc like Hp’s prodesk with 16-32GB RAM would do.