The Road from Roam to Obsidian

After covering the "bullet train" trip (hubbed elsewhere), this provides a detailed elucidation of all the issues you need to address on "The road from Roam ... to Obsidian.md" by summarising and linking to dozens of other posts, threads etc., creating "one place to look and minimize the pain of flipping through numerous posts and comments and pointing out (or eliminating) the stuff that isn’t relevant anymore because of Obsidian updates".

And it starts with some good advice: "Know Your Destination: If you don’t know where you’re going, it will take a long time to get there... [as] not everything converts nicely" from Roam to Obsidian, so make a "list of must-have things after conversion".