ToolJet
Build admin panels and dashboards on your databases and APIs by drag and drop. Workflows, RBAC and GitSync sit outside the AGPL code, in the Enterprise edition.
// DASHBOARD
3 entries tagged with "dashboard"
// ENTRIES
3 entries
ProxCenter
Watch several Proxmox VE clusters and Backup Servers from one vCenter-style web console. Community edition is AGPL; migration and DRS require Enterprise.
Netdata
Per-second metrics with nothing to configure, from a GPL agent. Reading logs takes a Netdata Cloud login; seeing more than five nodes takes a paid plan.