Mamba org public meetings

2024-08-19

Name	Affiliation	Github Handle
Julien Jerphanion	QuantStack	@jjerphan

Proposal plan

RFC — Towards a new solver for libmamba

2024-01-02

Name	Affiliation	Github Handle
Ruben Arts	Prefix.dev	@ruben-arts
Johan Mabille	QuantStack	@JohanMabille
Bas Zalmstra	Prefix.dev	@baszalmstra

(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

Name	Affiliation	Github Handle
Bas Zalmstra	Prefix.dev	baszalmstra
Hind Montassif	QuantStack	@Hind-M
Johan Mabille	QuantStack	@JohanMabille
Antoine Prouvost	QuantStack	@AntoinePrv

(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

Name	Affiliation	Github Handle
Bas Zalmstra	Prefix.dev	baszalmstra

2023-07-18

Name	Affiliation	Github Handle
Bas Zalmstra	Prefix.dev	baszalmstra
Wolf Vollprecht	Prefix.dev	wolfv
Travis Hathaway	Anaconda	travishathaway
Johan Mabille	QuantStack	@JohanMabille
Joël Lamotte	QuantStack	@Klaim

(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

Name	Affiliation	Github Handle
Bas Zalmstra	Prefix.dev	baszalmstra
Wolf Vollprecht	Prefix.dev	wolfv
Antoine Prouvost	QuantStack	@AntoinePrv
Hind Montassif	QuantStack	@Hind-M

(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

Name	Affiliation	Github Handle
Bas Zalmstra	Prefix.dev	baszalmstra
Ruben Arts	Prefix.dev	ruben-arts
Wolf Vollprecht	Prefix.dev	wolfv
Travis Hathaway	Anaconda	travishathaway
Johan Mabille	QuantStack	JohanMabille

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

Name	Affiliation	Github Handle
Bas Zalmstra	Prefix.dev	baszalmstra
Ruben Arts	Prefix.dev	ruben-arts
Wolf Vollprecht	Prefix.dev	wolfv

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

Name	Affiliation	Github Handle
Bianca Henderson	Anaconda	beeankha

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

2023-04-25

Attendees

Name	Affiliation	Github Handle
Travis Hathaway	Anaconda	@travishathaway
Jaime RodríguezG.	Quansight	@jaimergp

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

2023-04-11

Attendees

Name	Affiliation	Github Handle
Ruben Arts	prefix.dev	@ruben-arts
Wolf Vollprecht	prefix.dev	@wolfv
Tim de Jager	prefix.dev	@tdejager
Antoine Prouvost	QuantStack	@AntoinePrv
Hind Montassif	QuantStack	@Hind-M
Joel Lamotte	QuantStack	@Klaim
Travis Hathaway	Anaconda	@travishathaway
Johan Mabille	QuantStack	@JohanMabille

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?
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

Name	Affiliation	Github Handle
Bas Zalmstra	prefix.dev	@baszalmstra
Ruben Arts	prefix.dev	@ruben-arts
Wolf Vollprecht	prefix.dev	@wolfv
Tim de Jager	prefix.dev	@tdejager
Hind Montassif	QuantStack	@Hind-M
Joel Lamotte	QuantStack	@Klaim
Antoine Prouvost	QuantStack	@AntoinePrv

Wolf: Roar!?
Antoine: Generic wrapper around the solver
Hind: The context in mamba
- Joel not making it a singleton

2023-03-14

Attendees

Name	Affiliation	Github Handle	Favorite Snake
Bas Zalmstra	prefix.dev	@baszalmstra	Rattler
Johan Mabille	QuantStack	@JohanMabille	Yig
Ruben Arts	prefix.dev	@ruben-arts
Martin Renou	QuantStack	@martinRenou	Python
Hind Montassif	QuantStack	@Hind-M
Joel Lamotte	QuantStack	@Klaim
Jaime R.G.	Quansight	@jaimergp
Wolf Vollprecht	prefix.dev	@wolfv

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

Name	Affiliation	GitHub handle
Johan Mabille	QuantStack	@JohanMabille
Joel Lamotte	QuantStack	@Klaim
Antoine Prouvost	QuantStack	@AntoinePrv
Hind Montassif	QuantStack	@Hind-M
Bas Zalmstra	prefix	@baszalmstra
Wolf Vollprecht	prefix.dev	@wolfv

Rattler
- Showed progress on Rattler and the API for the libsolv agnostic solver.
PRs to merge soon?

2023-02-14

Attendees

Name	Affiliation	GitHub handle
Johan Mabille	QuantStack	@JohanMabille
Jonas Haag	Quantco	@jonashaag
Joel Lamotte	QuantStack	@Klaim
Antoine Prouvost	QuantStack	@AntoinePrv
Hind Montassif	QuantStack	@Hind-M
Wolf Vollprecht	prefix.dev	@wolfv

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

Name	Affiliation	GitHub handle
Sylvain Corlay	QuantStack	@SylvainCorlay
Jonas Haag	Quantco	@jonashaag
Joel Lamotte	QuantStack	@Klaim
Antoine Prouvost	QuantStack	@AntoinePrv

Updates on advancement of

better error messages
picomamba
powerloader integration.

2022-10-10

Attendees

Name	Affiliation	GitHub handle
Joel (Klaim)	QuantStack
Hind	QuantStack
Jonas Haag	QuantCo
Wolf Vollprecht	prefix	@wolfv

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

Name	Affiliation	GitHub handle
Sylvain Corlay	QuantStack	@SylvainCorlay
Antoine Prouvost	QuantStack	@AntoinePrv
Wolf Vollprecht	prefix	@wolfv
Bas Zalmstra	prefix	@baszalmstra

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?