ChimeraX Developer Meeting

Attendance: Greg, Zach, Tom, Eric

July 14, 2025

Agenda

• Trac not responding due to bots
• ChimeraX 1.10.1 patch release
  • Segmentations toolbar bad import #17662
  • Windows 1.10 build has 640 MB of unused Nvidia drivers from OpenMM #17970
  • 1.10 still asking to re-register, #18133
  • Session restore error #18140, lz4 4.4 problem
  • ffmpeg execute permission on mac, #18177
• Cancel next group meeting?
• Updating prereqs.
• Switch from PyQt to PySide?
• ViewDockX port to Qt
• Inside ribbon color?
• Work in progress reports
• Make Chimera end-of-life bug report and registration changes.
• Back up the Chimera build machine to a solid state drive, Windows 7.
• Linux ARM64 release and download page

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Discussion

• Trac
  • Has been working well for all of us since password protecting top level.

• ChimeraX 1.10.1 release
  • Disabled reregistration warning by setting expiration in 2124.
  • Zach will make sure ffmpeg has execute permission in Mac ARM and Intel builds.
  • Session restore lz4 problem. We will report bug to lz4 project.
  • Pip check failing on openmm-cuda nvidia dependencies for Tom, probably because he is on week old boltz 2 branch where Zach's openmm-cuda patch to remove nvidia dependencies was not yet in place.
  • Zach will make candidate 1.10.1 builds for us to verify 5 bugs are fixed. Then we will make release on Thursday if all looks good.

• Cancel group meeting?
  • Next two Thursday group meetings are cancelled since Tom Ferrin and Scooter are away.
  • If topics arise we can discuss in adhoc Thursday meeting in the office.

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Action Items