I believe so. Nostr scales with very light resources (a $5 VPS is enough to run a relay) so the theoretical potential is infinite.
I’m about to experiment with a personal relay and another for business use. Every environment tests.
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I run two, it's easy peasy. Three if you include the Umbrel one on my LAN. I should try getting it working over Tor now support is built into Amethyst.
I will also try, tnk for sharing your experience.