How do I get my speedpaint to export on Android?

I'm having problems exporting my Krita speedpaint on my Android tablet because I don't have something called an ffmpeg. I have tried googling it, and google says to install termux, and use the 'pkg install ffmpeg' command. It didn't work, and I don't have an ffmpeg in my files. I have no idea how to code, and I just want to export my speedpaint that I already finished. For extra context:

• My tablet is a 2021 Samsung Galaxy tab a7 lite (SM-T220)
• I use krita downloaded from the google play store, and a Wacom intuos to draw with
• I'm a noob when it comes to coding, and have no idea how to install an ffmpeg and make it work
• I've tried googling and watching YouTube videos, but got nothing
• The recording is of a drawing I already finished
• I didn't use the recording docker, I just used the shortcut on the top toolbar. (You can customize the shortcuts, and I added the record button a little bit ago) Dear Krita users, please help