Auto-reloading scratch-blocks

[CST1229]

Is there a way to automatically apply scratch-blocks changes when running the dev server? It is very annoying that I have to stop the server then restart it after building scratch-blocks from another command prompt, which takes a very long time to build all 2500+ modules.
Ideally I would be able to just run npm run prepublish && npm run translate on scratch-blocks in another command prompt and have scratch-gui apply only scratch-blocks and auto-reload the page, like when modifying scratch-vm etc.
Is there a way to do this?
(note: this is basically reposted from a Scratch forum topic, but I haven't got answers there yet)

[CST1229]

(am i allowed to bump threads here?)