Short answer: yes, but it's not a client-side primitive — it's a relay-to-relay sync protocol called Negentropy, specified in NIP-77.

What NIP-77 (Negentropy) does:
- Set reconciliation protocol — two relays exchange compressed Merkle-tree-like representations of their event sets and converge on the union efficiently. Doesn't transfer events both sides already have.
- Designed exactly for this use case: relays that want to stay in sync without re-fetching everything.

Implementations:
- strfry (Doug Hoyte's relay) implements Negentropy natively, has a 'strfry sync' subcommand that does relay-to-relay sync over NIP-77.
- Some other relays implement NIP-77 partially or via extensions.
- DVMs (Data Vending Machines, NIP-90) sometimes wrap sync logic into a callable service.

If you can't run the sync at the relay layer, the client-side workaround:
- Subscribe with REQ on relay A, receive events, EVENT-publish them to relay B. nak (the Nostr CLI) has a sync flow that does this; several relay-mirror scripts on GitHub do the same.
- noscl and other CLIs can do quick one-shot 'copy events from filter X on relay A to relay B' operations.

For your specific 'tell relay A to send a specific note to relay B': the cleanest pattern is client-side republishing — fetch from A with REQ, publish to B with EVENT. If you want the relays themselves to sync without a client mediating, NIP-77 plus a relay that supports it (strfry) is the path.

Worth noting: many relays slurp from a configured list of 'upstream' relays automatically — Coracle's relay and some hub relays do this. Not standardized, but the pattern exists.

If you can share what specifically you're syncing (your own outbox, a single event missing from a relay, backfilling a new relay from an old one), the right tool depends a lot on the use case.

Yes — per-port PoE control is a core managed-switch feature. Common ways to toggle:

- Web GUI / management portal (Unifi Network app, Cisco Catalyst Center, Aruba InstantOn, TP-Link Omada controller, Mikrotik WinBox).
- CLI over SSH (RouterOS, IOS-XE, Junos all expose 'poe disable interface X' style commands).
- SNMP (set the appropriate OID — useful for scripting).
- REST API on enterprise switches (Unifi has a documented API; Aruba and Cisco IOS-XE also support).
- Some switches support PoE schedules (turn off at night for specific ports) and PoE event triggers.

Common use cases:
- Reboot a stuck device by cycling its PoE (most common — IP camera, AP, IP phone hangs and needs a power cycle, no climbing a ladder needed).
- Save energy by scheduling APs or cameras off overnight if appropriate.
- Cut power to a compromised endpoint immediately as a security response.
- Power-budget management — turn off lower-priority devices when total PoE budget is exceeded.

Note: 'PoE disable' cuts power but doesn't affect data on that port (if the device is also powered separately). Not every switch labeled 'PoE' is managed — unmanaged PoE injectors and 'dumb' PoE switches just push power continuously with no per-port control. The feature to look for in the spec sheet is 'per-port PoE control' or 'PoE power management' / 'PoE scheduling.'

Long-press on the note text — Amethyst will pop up the standard Android selection handles, drag the start/end markers to grab just the relay URL (or whatever portion), then Copy. The default tap-menu copies the whole note which is the friction you're hitting. If long-press doesn't surface handles, update to the latest build — selection got patched up in recent releases.

Two mechanisms — pick by use case:

(1) NIP-46 (Remote Signing / "bunker") — the recommended path. You run a signer service that holds the privkey; the delegate connects via a bunker:// URI and requests signatures. Each request can require approval, or auto-approve within a budget/scope. Implementations: Amber (Android), nsec.app (web), nsecBunker (self-hostable). Revoke instantly by removing the connection inside your signer.

(2) NIP-26 (Delegated Event Signing) — older spec where you grant another keypair the right to sign events on your behalf for a time-bounded scope. Each delegated event carries a delegation tag proving you authorized it. Adoption is patchy — many modern clients silently ignore it or render the events as from the delegate's pubkey, not yours. Workable for narrow automation, unreliable for "this is me" delegation.

Practical picks:
- Account managed by a team / VA: NIP-46 + nsecBunker self-hosted, hand out scoped bunker URIs.
- A trusted bot / autonomous client: NIP-46 with auto-approve and a tight permission scope (only certain kinds, cap on rate).
- Avoid NIP-26 unless the receiving clients explicitly support it.

What's the use case? Helps narrow the recommendation.

There's no neutrally "fair" answer — depends on who started, who quit their job, who put in cash. But here are the frameworks people actually use:

(1) Equal split + vesting. Simplest at idea stage. Standard vest is 4 years with a 1-year cliff (no equity if you leave in year 1; monthly accrual thereafter). Avoid pure 50/50 with two co-founders without an explicit tiebreaker — creates deadlock.

(2) Slicing Pie (Mike Moyer's book + free tool). Dynamic equity that updates as people contribute time, cash, IP. Best for early stage where contributions are uneven and uncertain. Locks once you raise outside money.

(3) Adjustments to a baseline:
- Original idea: usually <5%. Ideas are cheap; execution is everything.
- Cash invested: pay back as a note (with interest) + a separate equity slice. Don't conflate the two.
- Full-time vs part-time: huge multiplier. A full-timer doing 60h/week shouldn't own the same as a moonlighter doing 5h.
- Brings critical talent or industry relationships: adjust upward.

Tools: foundrs.com calculator, Y Combinator's co-founder agreement template, Slicing Pie's spreadsheet.

Common pitfalls: idea-guy overweight, no vesting at all (early quitter walks with full equity), 50/50 with no tiebreaker. The first hard conversation should be "what happens if one of us quits in 6 months?"