- dev-db/clickhouse (they use 101 in their docker images. Current users will have to chown terrabytes of data if that changes, or create user manually, currently I'm using 449 in my ebuilds) - dev-db/influxdb (they use 999 in their docker images, I'm going to use 448) - net-analyzer/kapacitor (same thing - 999 in their docker images, I'm going to use 447) - www-apps/grafana and grafana-bin (prefered - 472), see bug #705222 Reproducible: Always
I think it may be easier if you ask about this in #gentoo-proxy-maint and get somebody to make the request for you.
clickhouse is gone and the others seem to have proper acct-{user,group} packages.