Rayfish, Tailscale, ZeroTier, Netbird etc are a different category of tool, designed to facilitate connectivity between you and your own pool of machines. They don't generally do much in the way of multi-hop routing, but rather they orchestrate VPN tunnels on top of another routed network (like the internet).
Reticulum would be better compared to Yggdrasil, cjdns etc as routing schemes for larger networks or true meshes, which can work independently of (and have no dependency upon) the internet.
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Different animal altogether.
Rayfish, Tailscale, ZeroTier, Netbird etc are a different category of tool, designed to facilitate connectivity between you and your own pool of machines. They don't generally do much in the way of multi-hop routing, but rather they orchestrate VPN tunnels on top of another routed network (like the internet).
Reticulum would be better compared to Yggdrasil, cjdns etc as routing schemes for larger networks or true meshes, which can work independently of (and have no dependency upon) the internet.