In addition to the above suggestions, you can:
- Export individual flows via the ALT+Right Click method: Web App ALT + Context Menu: Export/Import Flows.
- Print a flow to PDF via Chrome’s PDF print feature. You can also set the zoom level so your entire flow fits: Propper backup of flows, how? - #4 by SunBeech.
Though it requires some more effort, the advantage of the PDF-method is that you can always see what flowcards and which variables/tags you had in your flow after the related device/app/variable has been removed from your Homey.
Keep in mind that after removing a device/app/variable, Homey replaces the related flowcards and tags with greyed out ‘unavailable’ message. It is then difficult to determine what the original flowcard/tag/variable was. This is also the case if you import a flow that contains flowcards of apps/devices that are not available anymore.
Further, If you want to keep multiple backup versions of your flows and maintain a recycle bin of deleted flows, make sure to check out the Flow Version History app by @smarthomesven.