The top plate is secured in place with magnets (gluing isn't the answer!) and feels very secure and still easy to remove with spudger. Only a single ribbon cable connects the top to the main board and it has plenty of play so working with it was comfortable and easy to detach and reattach.
Installing the components, RAM (which I had) and wifi-card (which I bought from frame.work) was very easy. I'd even say easier than desktop since everything is open and flat. I'll install the NVMe later.
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