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Core dev meeting #79

https://www.youtube.com/watch?v=6KA-2OqxZ7U

Hello, here's the core dev meeting of the month, I apologize we lost 5 minutes early on as there was a recording issue

AI generated Meeting Summary

Because it's AI generated some mistakes may have slipped through, please listen to the meeting for the accurate info

1. HiveMind Sync Time & Robustness

  • HiveMind full sync time reduced from ~2.5 days to ~24 hours, significantly shortening the change/test cycle.
  • Multiple robustness improvements added to make HiveMind more resilient against various crash modes.
  • Outstanding HiveMind issue seen in RC-12 replay (block processing + DB issue) is expected to be resolved by the upgrade.

2. PostgreSQL 18 Status

  • Codebase is now Postgres 18 compatible, but this release still ships on Postgres 17.
  • Delay was due to a dependency lacking PG-18 support at the time; it may be ready now, but too late to swap in. Next release expected to ship on 18.

3. K6 API Performance Testing

  • K6 API performance testing added across all HAF apps.
  • Not heavily used this cycle, but intended to catch regressions in API calls going forward.
  • Additional motivation: gives AI measurable data to verify whether its changes improve or regress performance.

4. Release Schedule & Testing Tags

  • Target: release next week. App owners asked to test against apauditsyncat.com as soon as possible.
  • Tag naming clarified: RC-12 is old (weeks back). Official 1.x-style tags are protected and can't be easily re-tagged, so trivial changes forced fresh RC numbers, reaching 12.
  • Host moved to test2 / test3 tags to avoid that churn and the downstream ENV file updates it caused.
  • Use test2 for latest testing (test3 also acceptable). Real RC pending; HiveSense is the last blocker.

5. Feed Algorithm & Post-Subscription Work

  • Primary focus for the host: custom feed algorithm feature.
  • Additional minor work on the post-subscription feature.
  • Instrumentation added to Hive where it was missing on some APIs.
  • Ongoing rebasing and progression of open HiveMind features.

6. Boost / Compilation Updates

  • Boost updates are not for building against Ubuntu 24.
  • Aimed at downstream ideas around speeding up compilation. Too early to discuss details publicly.

7. Block Explorer - TVL Widget

  • api.syncad now exposes Total Value Locked on Hive.
  • New widget on Block Explorer shows total value locked, broken down into HP, HBD savings, and Hive savings, displayed in both Hive units and USD.
  • Positioned as useful for DeFi watchers.

8. Block Explorer - Other Updates

  • Updated wax and health-checker versions.
  • Minor layout issue noted in health-checker: dark background from a denser theme doesn't render correctly inside Block Explorer. Expected easy fix.
  • Duplicate entries bug (two entries showing for current date) patched on the frontend; backend API issue to be filed separately.
  • Gandalf's key display request implemented: UI now shows full vs shortened key depending on screen/container size.
  • Transaction statistics chart added, using HAF's daily volume API. Also pushed to HiveScan. Known rounding issue filed against Block Explorer.
  • Block Explorer team remains resource-constrained, no funding; progress is incremental.

9. Spear - Claude-Driven Unity Automation

  • Started with a Codex + MCP-style integration for Unity; switched to Claude (Max), which worked significantly better.
  • Current setup runs end-to-end automatically: boots Mongo, boots the backend, boots the Unity editor, makes changes, runs the editor, tests on its own.
  • Limitation: no live visual feedback. Uses screenshots with 5-10s waits, presses buttons via Unity Execute Code (same path as a real click), then re-screenshots to verify state.
  • Delivered 3-4 features (frontend + backend) in a single day.
  • Visual polish still needs a human; code wiring does not. Viewed as a directional shift for game development.

10. V2V (Hive <-> Lightning) Rewrite

  • V2V rewritten from scratch; entirely new backend.
  • Everything now drivable via custom JSON operations on Hive - not widely known yet.
  • Waiting on VSC to expose a Hive/HBD-vs-Bitcoin pool. Once available, the current balance-display frontend can be largely retired and custody removed.
  • In the meantime: balances on the system can be moved, used to pay Lightning invoices, or sent externally, all via custom JSON. Fully documented; contact Brian for integration help.

11. V2V Fee Model Change

  • Previous model charged a meaningful fee per small sat send.
  • New model: deposit once (e.g. $100), then fan out 1,000-sat sends via custom JSON, with the fee only applied at deposit.
  • User-to-user on the system: no fee.
  • User to external Lightning: usually very small fee; node deliberately run on a low-fee basis.
  • Rewrite not yet publicised; announcement and writeup pending.
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