Scrybble
Scrybble is a plugin which will synchronize your ReMarkable notes to your Obsidian vault.
For more information, check out the site: scrybble.ink
Whenever Obsidian starts, this plugin will look for new ReMarkable notes synced via the website. You can also click on sync manually in the scrybble settings page to initiate syncing yourself.
By default, your notes get synced to the scrybble folder.