Linux, starting Joplin with an alternative profile without start & restart

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Edit: Disregard this answer — the --profile flag is intended only for debugging (for example, it's used for automated testing in GitHub CI).

According to @laurent, improper usage of --profile flag can lead to data loss (particularly if used to force different versions of the app (e.g. desktop and CLI) to use the same profile).

Original In `~/.config/joplin-desktop`, there should be a `profiles.json` file.

Its contents should look similar to this:

{
	"version": 2,
	"currentProfileId": "48bmx57y",
	"profiles": [
		{
			"name": "Default",
			"id": "default"
		},
		{
			"name": "Profile 2",
			"id": "48bmx57y"
		},
		{
			"name": "Profile 3",
			"id": "zd48x96h"
		},
		{
			"name": "Profile 4",
			"id": "g2sj7zuy"
		}
	]
}

Observe that each profile has an id. There should be corresponding profile-id folders for each profile in ~/.config/joplin-desktop/. For example, Profile 4 has a profile-g2sj7zuy folder.

As such, for me,

joplin-desktop --profile ~/.config/joplindev-desktop/profile-g2sj7zuy

would launch Joplin with Profile 4.

Note that it doesn't seem possible to run both at once, because of Joplin's single instance check.

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