You're not the first one to ask... So I guess I should explain a bit.
Short answer: no.
Explanation: Have you ever tried, on a dual boot system, to install software from one OS to another? Like, running a Windows installer from macOS to install something to bootcamp Windows? Same problem here, except 10 times worse.
While on Windows every file system and format is well known and well documented, here we're missing several important pieces of info. GM9 does not run within the 3DS OS, it runs "baremetal", with nothing beneath it.