Top 10 Tips for Using OpenMSX Portable Efficiently
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Prepare a portable folder structure
- Create folders: /openmsx (exe), /roms, /disks, /snapshots, /catapult, /settings. Keep all related files inside the USB root to avoid path issues.
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Use the Portable Mode tool
- Enable full persistence so settings, snapshots and ROMs stay with the portable installation rather than the host PC registry or user profile.
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Include Catapult (GUI)
- Ship Catapult with openMSX for easier machine, disk and ROM management on other computers.
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Preconfigure a master settings file
- Create a settings file (openMSX.xml or catapult profile) with preferred machine, devices, keyboard mapping, audio/video and default paths. Load it at startup to avoid reconfiguration.
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Organize ROMs and BIOSs by machine
- Subfolders per machine (e.g., MSX2, MSX2+, TurboR) and an index text file listing required BIOS filenames so you can quickly meet dependencies on new hosts.
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Use snapshots and save states regularly
- Keep periodic snapshots in /snapshots for quick restores; label them with game and date to avoid confusion across systems.
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Bundle common utilities and drivers
- Include useful MSX tools (disk image utilities, ROM managers, input drivers) so you can fix images or convert formats on the go.
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Optimize performance settings for host variability
- Provide two presets: “Compatibility” (lower emulation speed, conservative audio/video) and “Performance” (higher CPU usage). Let Catapult or a startup script pick the appropriate preset.
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Add a small startup script
- Provide a platform-appropriate script (Windows .bat, Linux .sh) that sets relative paths, optionally mounts default disk/ROM and launches Catapult/openMSX with your master profile.
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Test on multiple host OS versions
- Verify the portable package on different Windows versions (and Linux if supported) and on both x86/x64 hosts. Note any missing redistributables and include instructions or installers if needed.
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