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tags: [meeting-notes]
---
# conda-forge core meeting 2023-05-03

Add new agenda items under the `Your __new__() agenda items` heading

- [Zoom link](https://zoom.us/j/9138593505?pwd=SWh3dE1IK05LV01Qa0FJZ1ZpMzJLZz09)
- [What time is the meeting in my time zone](https://dateful.com/convert/utc?t=5pm)
- [Last week's meeting](https://hackmd.io/#REPLACE_ME#)

## Attendees

| Name | Initials | GitHub ID | Affiliation |
| ----------------------- | -------- | --------------- | --------------------------- |
| Dave Clements | DPC | tnabtaf | Anaconda |
| | | | |
| Filipe Fernandes | FF | ocefpaf | conda-forge |
| Cheng H. Lee | CHL | chenghlee | conda-forge/Anaconda |
| Marius van Niekerk | MvN | mariusvniekerk | VoltronData/cf |
| Ryan May | RMM | dopplershift | Unidata/cf |
| Jannis Leidel | JL | jezdez | Anaconda/cf |
| John Kirkham | JK | jakirkham | NVIDIA/cf |
| Marcel Bargull | MB | mbargull | Bioconda/cf |
| Avalon | A | uwuvalon | Anaconda |
| Jaime Rodríguez-Guerra | JRG | jaimergp | Quansight/cf |
| | | | |
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18 people total

### Introductions

- [x] Andrew Vallette on the packaging team at Anaconda.

### Standing items

- [ ]

### From previous meeting(s)

- [x] (WV) rattler-build - new conda package build tool: https://github.com/prefix-dev/rattler-build
- builds conda packages from recipe format that looks a lot like BOA
- Writes metadata in rattler format
- Did a live demo.
- Aiming to give better diagnostics
- MRB: BOA Spec?
- We need to figure out what to do.
- Need a defined spec that everyone can write to
- JL: what do we need to do create a spec?
- Selectors,
- MVN: version number in spec. People were in violent agreement.
- JL: We need a spec
- WV: we have a JSON schema.
- JK: argues for a new YAML format. Would be interested in being involved in Spec writing group
- Some recipes will/may be left behind.
- ACTION: Discusss this on Conda call next week.
- [x] (JK) New CTK packages / CUDA 12
- Opening CUDA 12 migrator
- Package layout changes:
- https://github.com/conda-forge/conda-forge-pinning-feedstock/pull/4400
- Document?
- Message?
- Incremental rollout?
- Marius suggested bot message customization
- May need to go in bot code
- Could add change to bot code to
- (IF) Has question about layout
- (JK) Using `cuda` would be ok
- (IF) Changes a lot of things for CMake
- (JK) Discussion to have with Robert Maynard
- (JK)
- (Longer-term) CUDA 11 backport? (punted to later meeting)
- New style packages on older CUDA versions
- What version to start with (`nvidia` channel has `11.4`)?
- `cudatoolkit` becomes metapackage?
- Potential to drop some CUDA specific things
- Docker images
- conda-forge-ci-setup simplification
- [x] (JK) Windows MinGW & UCRT
- https://github.com/conda-forge/r-base-feedstock/issues/248
- https://github.com/conda-forge/conda-forge.github.io/issues/1654
- https://github.com/conda-forge/conda-forge.github.io/issues/1044
- (AV): Anaconda is looking into ways to fix this issue
- Do we binary repack MSYS2 packages? Or rebuild?
- How can we automate UCRT-based MSYS2 Windows?
- Could even automate recipe generation
- https://github.com/conda-forge/msys2-recipes
- (MRB) CDT approach could be reused here
- https://github.com/conda-forge/cdt-builds
- (IF) What do we want packaged
- May need customization; e.g., `run_exports`
-
- (AV): Will share work as it progresses
- (MB): Old MinGW use subfolder?
- Do we want to change this for UCRT? Or keep the same?
- (IF) Depends on what we package
- [x] (JK) GLIBC 2.28
- https://github.com/conda-forge/conda-forge.github.io/issues/1941
- (MRB) Need review
- https://github.com/conda-forge/conda-forge-repodata-patches-feedstock/pull/441
- https://github.com/conda-forge/linux-sysroot-feedstock/pull/47
- (MRB) Downloaded RPM need review
- Directory level varies / need to confirm that is the right level
- (MB) Do we need language packs?
- (MRB) Have English in one
- (MRB) Have one with many languages
- (IF)
-
- [x] (JK) Windows ARM
- (SD) Hi :) Happy to answer questions
- https://github.com/conda-forge/conda-forge.github.io/issues/1940
- (IF) https://github.com/conda-forge/vc-feedstock/pull/55
- (IF) Question for Steve: What do you plan on building in the first year?
- (IF) Conda / Mamba / Boa needed to build, Installer?
- (SD) Installer is ambitious (would be great! not required). Want attempts/CI issues visible
- (SD) Challenges getting more hardware atm. So just be able to build
- (IF) Python would be a goal? Maybe NumPy & SciPy?
- (JK) What would be helpful for finance conversation?
- (SD) Ask for less? ;) Though nothing has really been asked yet.
- (SD) Finn can help :)
- (IF) Can build `zlib`! :tada:
- Local build
- (MvN) Maybe macOS ARM list could be a starting point
- (SD) Rust toolchain should work (testing with cryptography)
- (IF) Does Clang cross-compilation work?
- (SD) Using Cygwin (not Clang) atm
- [ ] (HV) Boost Harmonization
- Now has PR: https://github.com/conda-forge/boost-feedstock/pull/164
- Discussion yielded bikeshed à la: `libboost`, `libboost-headers`, `libboost-python`
- [ ] (MB) R 4.3 migration
- https://github.com/conda-forge/conda-forge-pinning-feedstock/pull/4363
- Any objections on kicking it off?
- Windows TeX build issues for 4.1 might need to be resolved due to other non-R migrations?

### Active votes

- [ ]

### Your __new__() agenda items

- [X] (DPC) Package building tutorial at PyCon US 2023 was a success.
- We had ~25 participants
- Tutorial will be published online after some cleanup.
- [X] (JRG) SDG for opt-in CI accepted (related to https://github.com/conda-forge/conda-forge.github.io/issues/1875 and GPU server)
- [X] (WV) SDG for pubgrub on rattler accepted too
- [ ]

### Pushed to next meeting

- [ ]

### CFEPs

- [ ]