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TechQuiet 3d · day 4

JJ Con 2026 talk surveys version control ecosystem tools

Developer talks through jj configuration, commands, and integrations; jj bisect and bookmark features now bundled into core.

newest coverage 3d agosummary written 2d ago4 pieces98 likes & upvotes4 comments LobstersHacker News

What to know

  • JJ has integrated previously external capabilities—bisect automation and bookmark advancement—into its core, reducing friction for version control workflows.
  • The jj ecosystem supports deep customization through templates, revsets, and aliases that can chain together complex automation without external tools.
  • The JJ Con 2026 talk consolidates jj ecosystem documentation and tooling advice that was previously scattered across official docs, wikis, and community repositories.

Andre Arko Developer, JJ Con 2026 speakerSteve Klabnik jj core maintainerjj project Version control system

How it unfolded 2 developments, newest first · click a bar or a number to jump posts

Peak 1 piece in one hour at Sep 20, 6 AM; 4 pieces over 4 days (4 posts) Sep 20, 6 AM — 1 piece · 1 post — Lobsters 1Sep 20, 7 AM — quietSep 20, 8 AM — 1 piece · 1 post — Hacker News 1Sep 20, 9 AM — quietSep 20, 10 AM — quietSep 20, 11 AM — quietSep 20, 12 PM — quietSep 20, 1 PM — quietSep 20, 2 PM — quietSep 20, 3 PM — quietSep 20, 4 PM — quietSep 20, 5 PM — quietSep 20, 6 PM — quietSep 20, 7 PM — quietSep 20, 8 PM — quietSep 20, 9 PM — quietSep 20, 10 PM — quietSep 20, 11 PM — quietSep 21, 12 AM — quietSep 21, 1 AM — quietSep 21, 2 AM — quietSep 21, 3 AM — quietSep 21, 4 AM — quietSep 21, 5 AM — quietSep 21, 6 AM — quietSep 21, 7 AM — quietSep 21, 8 AM — quietSep 21, 9 AM — 1 piece · 1 post — Hacker News 1Sep 21, 10 AM — 1 piece · 1 post — Hacker News 1Sep 21, 11 AM — quietSep 21, 12 PM — quietSep 21, 1 PM — quietSep 21, 2 PM — quietSep 21, 3 PM — quietSep 21, 4 PM — quietSep 21, 5 PM — quietSep 21, 6 PM — quietSep 21, 7 PM — quietSep 21, 8 PM — quietSep 21, 9 PM — quietSep 21, 10 PM — quietSep 21, 11 PM — quietSep 22, 12 AM — quietSep 22, 1 AM — quietSep 22, 2 AM — quietSep 22, 3 AM — quietSep 22, 4 AM — quietSep 22, 5 AM — quietSep 22, 6 AM — quietSep 22, 7 AM — quietSep 22, 8 AM — quietSep 22, 9 AM — quietSep 22, 10 AM — quietSep 22, 11 AM — quietSep 22, 12 PM — quietSep 22, 1 PM — quietSep 22, 2 PM — quietSep 22, 3 PM — quietSep 22, 4 PM — quietSep 22, 5 PM — quietSep 22, 6 PM — quietSep 22, 7 PM — quietSep 22, 8 PM — quietSep 22, 9 PM — quietSep 22, 10 PM — quietSep 22, 11 PM — quietYesterday, 12 AM — quietYesterday, 1 AM — quietYesterday, 2 AM — quietYesterday, 3 AM — quietYesterday, 4 AM — quietYesterday, 5 AM — quietYesterday, 6 AM — quietYesterday, 7 AM — quietYesterday, 8 AM — quietYesterday, 9 AM — quietYesterday, 10 AM — quietYesterday, 11 AM — quietYesterday, 12 PM — quietYesterday, 1 PM — quietYesterday, 2 PM — quietYesterday, 3 PM — quietYesterday, 4 PM — quietYesterday, 5 PM — quietYesterday, 6 PM — quietYesterday, 7 PM — quietYesterday, 8 PM — quietYesterday, 9 PM — quietYesterday, 10 PM — quietYesterday, 11 PM — quietToday, 12 AM — quietToday, 1 AM — quietToday, 2 AM — quietToday, 3 AM — quietToday, 4 AM — quietToday, 5 AM — quietToday, 6 AM — quietToday, 7 AM — quietToday, 8 AM — quietToday, 9 AM — quietToday, 10 AM — quiet 12
Sep 21Sep 22yesterdaynow · 11:29 AM ET
  1. 2

    Post reaches Hacker News

    The same talk was posted to Hacker News, reaching readers there with 3 points by September 21.

  2. 1

    Talk published and shared on Lobsters

    The "Beyond jj" talk was shared on Lobsters with 90 points and 3 comments.

    “I'm happy to report that today we don't need tug anymore, because jj bookmark advance now do the same thing that tug used to do.”
    — Andre Arko, JJ Con 2026 speaker · source
  3. background

    Arko describes jj run and configuration patterns — The talk covers jj run for executing scripts across a revset, custom templates, revsets, and aliases. Arko emphasizes that substantial automation is possible through pure jj configuration without external tools.

  4. background

    Arko highlights capabilities baked into jj core — The speaker reports that jj has incorporated several features previously requiring external scripts or wrapper tools. Specifically, jj bookmark advance now replaces the need for the jj tug alias, and jj bisect run handles automated bisection without external tooling.

  5. background

    Andre Arko talks jj ecosystem at JJ Con 2026 — A talk titled "Beyond jj: config & tools ecosystem" was presented at JJ Con 2026, surveying jj configurations and tooling across the community. The talk follows up on a similar talk from the prior year.