• You have a Development-Testing-Acceptance-Production (DTAP) workflow
• You have a custom theme (vs tweaks on a Tiki theme with some Custom CSS
• Your theme evolves somewhat independently from the rest of the code development
• You care that the theme is up to date on instances beyond production

• Use php tiki-manager instance:checkout
• Use branches to deal with major changes of the theme (Ex.: Bootstrap 4 vs 5)

If various Tiki instances on the same server, use symlinks to point to a shared directory which contains the theme. This directory can be managed by Git or just be files on disk.

• Sync Dev-Prod Servers
• Divergent Preferences in Staging Development Production
• System Configuration