Mamba org public meetings

2024-08-19

Proposal plan

• RFC — Towards a new solver for libmamba

2024-01-02

• (JM)Release of Mamba 2.0 is on its way
  • Alpha release is out
  • Libmamba is working well
  • Antoine is going over the breaking change
• (RA) Going for rattler-build in conda-forge before 2025 ;)

2023-09-26

• (BZ) Resolvo (rust libsolv port) released as a seperate repository (broken away from rattler)
  • https://github.com/mamba-org/resolvo
  • Forgot to mention: its now also faster than the C implementation (up to 5x)
• (BZ) We are working on a PyPi solver based on this work.
• (Hind) Replacing mamba with dynamic build of micromamba
• (Johan) New downloader (and support of OCI Registry + mirrors) coming soon

2023-08-01

2023-07-18

• (WV) Pixi & deno task shell
• (TH) New Pixi issue for me
  Image Not Showing Possible Reasons

  • The image file may be corrupted
  • The server hosting the image is unavailable
  • The image path is incorrect
  • The image format is not supported

  Learn More →
  • Maybe: https://github.com/prefix-dev/pixi/issues/76 (support the channel::package syntax)

2023-07-04

Attendees

• (BZ) libsolv-rs port has been merged in Rattler.
• (WV) pixi user surveys ongoing
• (WV) rattler-build - new recipe format - vote happening soonish!
  • https://github.com/conda-incubator/ceps/pull/54

2023-06-20

Attendees

• Introductions
• (WV) libsolv-rs is a thing now :)
• (WV) Patch libsolv © to remove the subdir checks
• (WV) Release boa 0.15 in a way that isn't broken
• (BZ) Rattler 0.3.0: JLAP support has landed in Rattler (Thanks to Travis).
• (RA) pixi going public
  Image Not Showing Possible Reasons

  • The image file may be corrupted
  • The server hosting the image is unavailable
  • The image path is incorrect
  • The image format is not supported

  Learn More →

2023-06-06

Attendees

• WV: JLAP support for Rattler PR by Travis (Anaconda) (https://github.com/mamba-org/rattler/pull/197)
• WV: resolvelib-rs seems to be pretty slow for certain cases. Went back to the drawing board, currently investigating porting libsolv.
• A: splitting the Transaction class in mamba
• WV: Please comment on the new yaml based format for conda-build (https://github.com/conda-incubator/ceps/pull/54)
• WV: Previously demoed px tool renamed to pixi
• RA: Demo of pixi

2023-05-23

Attendees

• px teaser (built on rattler) -> https://prefix.dev
• rattler-build CEP
• resolvelib-rs (https://github.com/prefix-dev/resolvelib-rs)

2023-04-25

Attendees

• Johan: Powerloader concepts in libmamba directly, scheduled for end of June

2023-04-11

Attendees

• rattler developments:

  • more types in the parsed json things (timestamp, hashes, …)
  • more ordering when writing out files (consistent alphabetical order)
  • working on rattler-build :)

• mamba release 1.4.2:

  • Fixed environment variables not read as unicode
  • Fixed corner case in SAT solver
  • Fixed segfault in add_pin/all_problems_structured
  • Safely ignores virtual packages in compute_final_precs function
  • Fix PKG_BUILDNUM env variable for post-link scripts

• jlap impl?

  • https://github.com/conda-incubator/ceps/pull/48
  • https://github.com/conda-incubator/ceps/pull/20
  • https://github.com/mamba-org/mamba/pull/2029
  • https://github.com/mamba-org/powerloader/pull/122

• micromamba documentation (installation)

  • Add TOC for different install methods
  • Use tabs for differen't os'es: https://sphinx-tabs.readthedocs.io/en/latest/

2023-03-28

Attendees

• Wolf: Roar!?

• Antoine: Generic wrapper around the solver

• Hind: The context in mamba

  • Joel not making it a singleton

2023-03-14

Attendees

• Wolf: Rattler progress
  • https://docs.google.com/presentation/d/1E7LA-P2eUeffvLEGfrkE0uG4kQmqCCRRx0xJImz2qjE/edit?usp=sharing
• Johan: Update on mamba refactoring
  • isolation of dependencies (curl, libsolv)
  • abandonment of powerloader (the ideas will be developed again directly into mamba)
  • cleanup / robustification of mamba (memory / threading external tools)
• Jaime: community contributions on mamba? Guidelines, how to best communicate with the team?
• Wolf: Next mamba release?
  • Can have a release quickly

2023-02-28

Attendees

• Rattler

  • Showed progress on Rattler and the API for the libsolv agnostic solver.

• PRs to merge soon?

  • https://github.com/mamba-org/mamba/pull/2138
  • https://github.com/mamba-org/mamba/pull/2329

2023-02-14

Attendees

• QuantStack:
  • powerloader integration (fix ssl certificate path)
  • mamba API refactoring (how do we break API)
    • break C++ api is ok, python api needs to be stable
    • break python api after announcing a breaking change (major versio change)
  • issues triage
• jlap support & lockfile sync
  • file locking: planned in mamba API refactoring
    • might or not change implementation and strategy, need more research
• rattler

2023-01-30

• Jaime R: CZI/CF team introduction

2023-01-16

• Jonas Haag: provision-with-micromamba rewrite, semver, new name, typescript. RFC: https://github.com/mamba-org/provision-with-micromamba/issues/114

2022-10-24

Attendees

Updates on advancement of

• better error messages
• picomamba
• powerloader integration.

2022-10-10

Attendees

Agenda

Technical

• Work towards 1.0 micromamba release then decide on future for mamba, micromamba, conda.

Community

• Team compass with a calendar indicating that call
• Decide on an official channel
• Some kind of governance
• NumFOCUS affiliation

Notes

• People talking about the differnt PR's
• Why is self-updating important
• Joel Mentioned butler for itch.io
• Jonas has run the benchmark, and seen an improvment with the new use of libcurl

Next Agenda

Technical

• Check how far we are with micromamba 1.0 release
• Discuss deprecation of mamba (as in everything under mamba/)
  • Subsituting executable with micromamba should be easy enough
  • Port relevant mamba.api to libmambapy?
  • Rename mircomamba > mamba ?

Community

• Team compass with a calendar indicating that call
• Decide on an official channel
• Some kind of governance
• NumFOCUS affiliation

2022-09-26

Attendees

Agenda

Technical

• Ask about interested party for “mamba-devbox”
• Antoine: What to do with Mamba, Micromamba and Conda now that Conda is also integrating libsolv.
• DL Speed testing (WV)

Community

• Team compass with a calendar indicating that call
• Decide on an official channel
• Some kind of governance
• NumFOCUS affiliation

Notes

• Powerloader integration:

  • Johan finished the fully static build of powerloader.
  • Joel iterating on integration (Joel is off this week).

• Missing item on Powerloader:

  • providing a gzipped repodata.json from OCI, but it won't be automatically unzipped, because we cannot set the http headers properly.
  • Question asked to GH support. Looking for a workaround.

• Mamba-org governance

  • adopt conda-like or jupyter-like governance.
  • Dave Clements: chat platform consolidation
    • https://conda.discourse.group/t/infrastructure-resources/40
    • https://conda.discourse.group/t/about-the-mamba-category/17
    • conda/mamba ecosystem acknowledgement.
  • apply for NumFOCUS membership. 3 signatories

• Error messages

  • Antoine working on making fake errors

• Wolf: download speed optimization

• Mamba, micromamba, and conda

  • Wolf: get rid of mamba and just use micromamba
    • What is missing in micromamba?
      • Removing environments
      • Missing commands or support for CLI arguments.
      • Track completeness of support for conda features.
      • We should allow for self-updating micromamba.
    • Renaming micromamba to mamba?