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2026-01-28 Conda Ecosystem Meeting

Zoom link · What time is the meeting in my time zone: 5pm, 2pm

Various parts of the conda ecosystem gather on a regular basis. This meeting brings together all of these sub-communities for a community wide call.

Attendees​

  1. JRG: Jaime Rodríguez-Guerra (@jaimergp), Quansight, CF/C, C/SC.
  2. CHL: Cheng H. Lee (@chenghlee), Anaconda, CF/C, C/SC
  3. DY: Dan Yeaw (@danyeaw), Anaconda
  4. JS: Jakov Smolic (@jsmolic), Quansight
  5. UK: Uwe Korn (@xhochy), QuantCo, CF/C, C/SC.
  6. MRB: Matthew R Becker (@beckermr), CF/C
  7. SC: Sylvain Corlay (@SylvainCorlay), QuantStack
  8. BZ: Bas Zalmstra (@baszalmstra), Prefix.dev, CF/C, C/SC
  9. WV: Wolf Volprecht (@wolfv), Prefix.dev, CF/C, C/SC

Announcements​

From previous meetings​

  • (HV) Package rename CFEP; what are next steps? We should wrap this up

New agenda items​

  • JRG: Starting RFC period for standards CEP. List and graph available at: https://github.com/Quansight-Labs/conda-ecosystem-sta-mgmt/issues/4
  • MRB: we have heroku credits for conda-forge, $40 a month for 1 year, will be moving the heroku server to either a couple of basic instances (7 a month) or one standard instance (25 a month)
  • SC: notebook.link
    • Uses conda ecosystem behind the scene, especially emscriptem-forge
    • Powered by rattler under the hood and webassembly
    • All done client-side
    • Includes AI Chat widgets
    • Supports snapshotting notebook states and generating links from it so it can be shared easily
    • Issues and reports can be posted in notebook.link's Zulip or repo.
    • Very useful for lessons and courses! Served 1000s students concurrently at almost no cost. Replaced massive JupyterHub deployment.
  • DY: Demo of conda install <wheel> from repodata
    • Many different libraries getting together for this! conda, conda-pypi, py-rattler, conda-rattler-solver
    • Demo with local repodata draft
  • MRB: CDN cloning times back up at 30 - 40 minutes?
    • Used to be ~10min, but now this like 3x or 4x. Will open issue in conda/infrastructure.
  • JRG: conda CEP-athon in FOSDEM this Friday! Reach out on Zulip if interested.
  • SC: Coming soon: sharded repodata in libmamba.
  • WV: Attestations for sources in rattler-build recipes (e.g. to check PyPI attestations, GH Releases, crates, etc). CEP to follow. One more layer of supply chain security!

Deferred to next meeting​