• Automatically install in CI https://github.com/GiovanniBussi/macports-ci

• OS-Scripts/installer.sh at master · TheAlienDrew/OS-Scripts

• howto/ParallelBuilding – MacPorts
• Possible problems
  • ProblemHotlist – MacPorts
  • ProblemHotlist – MacPorts
• LibcxxOnOlderSystems – MacPorts
• macOS/MacPortsDetail - GnuCash

Building installers

• How to build a Macintosh executable that will run on older versions of MacOSX. - DEV Community
• howto/CreateInstallers – MacPorts
• 3.4. Port Binaries