What

Work full-time 4 months on:

• Completing the FCMP++ integration.
  • Complete the blinds cache to speed up FCMP++ transaction construction (WIP PR).
  • Work on the following, some of which @jeffro256 is already working on:
    • Fee logic for FMCP++.
    • Incorporate composition changes to tree building and remove code for the key image migration: https://github.com/monero-project/meta/issues/1168
    • Cold wallet <> hot wallet integration.
    • HW wallet interface changes.
    • Multisig.
    • The scan_tx feature.
    • Background sync.
    • Clean up the FFI.
    • Cleaner logging.
  • Manage the FCMP++ optimization contest and implement the winning submissions as necessary.
    • It should be noted: if the contest does not yield significant improvements specifically to helioselene, it may be worth it to re-work the FCMP++ wallet scanner to download the tree instead of re-build it locally.
      • Re-working the wallet scanner would likely take 1-2 weeks.
• Review the Carrot integration.
• Update documentation for the FCMP++ integration, using the same format as in this (now outdated) WIP PR.
• Start submitting piecemeal FCMP++ PR's to the main Monero repo.
• Review @vtnerd's p2p encryption PR: https://github.com/monero-project/monero/pull/8996
• Continue Seraphis wallet library work:
  • My next task on this front is to bring the Serpahis lib async scanner into the current wallet API (source)
  • In the latest round of tests, I observed scanning speed-ups of 50-60% with a clearnet remote node, 35-45% with a tor node, 25-35% with a local node.
  • The async scanner has already undergone a round of review (source)
  • To be usable in the wallet API, the following still needs to be implemented:
    • A mutable subaddress lookahead (source)
    • Pool scanning (source)
    • A clean way to save tx metadata (source)
    • The FCMP++ tree builder + Carrot scanning needs to be integrated.

A note: once I've completed all work on FCMP++, reviewing the Carrot integration, and reviewing p2p encryption), I may work on Serai independent from this CCS. I would like to see Serai launched and operating smoothly (and I still owe @kayabaNerve more work on Serai in exchange for their research into FCMP's). I would then return to continue Seraphis wallet library work.

Who

j-berman on github / jberman on matrix / IRC

Past CCS's:

• https://ccs.getmonero.org/proposals/j-berman-3months-full-time-9.html
• https://ccs.getmonero.org/proposals/j-berman-3months-full-time-8.html
• https://ccs.getmonero.org/proposals/j-berman-3months-full-time-7.html
• https://ccs.getmonero.org/proposals/j-berman-3months-full-time-6.html
• https://ccs.getmonero.org/proposals/j-berman-3months-full-time-5.html
• https://ccs.getmonero.org/proposals/j-berman-3months-full-time-4.html
• https://ccs.getmonero.org/proposals/j-berman-3months-full-time-3.html
• https://ccs.getmonero.org/proposals/j-berman-3months-full-time-2.html
• https://ccs.getmonero.org/proposals/j-berman-3-months-full-time.html

Proposal

396 XMR

640 hours, 0.3 XMR/hr + $65/hr, $204/XMR from coingecko

Requesting a raise of 0.05 XMR/hr from my prior CCS given I have demonstrated the ability to take the FCMP++ integration to the finish line.