There is no limit on the number of users for the open source version (locally installed) version of Grafana. More here.
After installing, with no Internet access, I would expect Grafana to run fine so long as your datasource is visible.
There is no limit on the number of users for the open source version (locally installed) version of Grafana. More here.
After installing, with no Internet access, I would expect Grafana to run fine so long as your datasource is visible.