So one can easily create a task in Slash from an email
Or a personal email address to which you can forward tasks, so it works with all providers, not just Gmail.
Would be good if you could have a slash label in gmail that would add all emails with that label to slash as a task. Once marked as complete in slash label would be removed
Implement a sidebar using the Google Workspace Add-on API so that you can be installed via the Google Marketplace, that shows your lists and tasks, and allows you to create tasks from an email (that has a URL back to the email), as, like many, much of my work comes via my inbox.