You can run rust on the pm3 by compiling a rust project for ''armv7-unknown-linux-gnueabihf'' like so:

''cross build --release --target armv7-unknown-linux-gnueabihf''

Because the pm3 uses an ancient version of glibc, you'll need to add a ''.cargo/config.toml'' file to your project.

''
[target.armv7-unknown-linux-gnueabihf]
rustflags = ["-C", "target-feature=+crt-static"]
''

scp doesn't seem to work, but moving binaries to the device can still be accomplished in a number of ways and this is what occurred to hypha first.

''cat target/armv7-unknown-linux-gnueabihf/release/project | ssh root@pm3ip 'cat - > /tmp/project; chmod +x /tmp/project'''

As a bonus tip, you can use slint on the device for building a GUI with the ''slint-backend-linuxfb'' crate, which will software render directly to /dev/fb0