Would be awesome if the hacker community could help build such robots to drastically improve the quality of life of bedridden ME/CFS patients! The plans for a small minus-type robot are opensource and freely available for 3DPrinting. (I didn't create the plans, they were designed and made freely accessible by the vigibot developers).

3D printer files: https://github.com/vigibot/vigicad

Configuration: https://www.robot-maker.com/forum/topic/12794-how-to-add-my-raspberry-pi-robot-on-vigibot-to-control-my-robot-over-the-internet/