How to migrate from bolt db to postgres?

[dannydeezy]

Is there a doc recommending how to migrate an existing node from using the bolt db backend to postgres? I'd like to try migrating because I assume using postgres would mean Lnd won't take several minutes to start up like it does with bolt?

[thinkmassive]

The migration tool is tracked in #5561

Please note the latest comment, regarding whether this is ready for production use:

No, this hasn't been tested sufficiently and isn't recommended to be used (which is also the main reason for this not to be merged yet).

Converting this issue to a Discussion, as I'm sure others will have the same question going forward.