I recently got my very mobile setup up and running:
It's a William Optics Star71 (5 element flat field apo) with a 294MC pro mounted on a iOptron HEM15 and controlled by stellarmate on a Raspberry pi4.

I made the carbon fiber guidescope myself (it's -very- lightweight!)
And also the focuser & controller. (Direct drive, usb powered)
I have two filters with this to choose from: a Antlia ALP-T duo narrowband and a IDAS LPS filter for RGB imaging.