# Mamba org public meetings

## 2024-08-19

| Name | Affiliation | Github Handle |
|-------------------|-------------|-----------------|
| Julien Jerphanion | QuantStack | @jjerphan |

### Proposal plan

- [RFC — Towards a new solver for `libmamba`](https://github.com/mamba-org/mamba/issues/3387)

## 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 :sunglasses:
- 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 (C) to remove the subdir checks
- (WV) Release boa 0.15 in a way that isn't broken
- (BZ) [Rattler 0.3.0](https://github.com/mamba-org/rattler/releases/tag/v0.3.0): JLAP support has landed in Rattler (Thanks to Travis).
- (RA) [pixi](https://github.com/prefix-dev/pixi) going public :rocket:

## 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?
- 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

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

## 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](https://github.com/mamba-org/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?