Upon launch of the Vimarily .app I get an error "The application "Vimarily.app" can't be opened."

Checking safari extensions, I do see Vimarily is present:

However, Vimarily does not appear to be running in Safari. There is no icon in the browser and the extension does not function. I do believe I see the Vimarily icon flash in Safari for a split second so I assume it is crashing but I do not know how to debug.
- macOS version: 13.0
- Safari version: 16.1
- Vimarily version: 1.0.0
Upon launch of the Vimarily .app I get an error "The application "Vimarily.app" can't be opened."

Checking safari extensions, I do see Vimarily is present:

However, Vimarily does not appear to be running in Safari. There is no icon in the browser and the extension does not function. I do believe I see the Vimarily icon flash in Safari for a split second so I assume it is crashing but I do not know how to debug.