Jacdac education

I have BrainPad Arcade and two Meowbits for Arcade consoles. I would like to write a blink light program with MakeCode using the jacdac extension. I see the tutorial written in Maker Makecode https://maker.makecode.com/projects/jacdac/pixel-blink
but this does net give me the board choice of either of my consoles. I have Makecode Arcade environment but when I import the jacdac program of light blinking into that then I get the error message in editor. Even with jacdac extension installed. Could you please show me how to write a simple comm. program in MakeCode between BPA and another board using jacdac protocol? thx