There's a few videos on youtube of various mechanisms for getting up stairs without walking on legs. I suppose the challenge is to get it to work properly on th

There's a few videos on youtube of various mechanisms for getting up stairs without walking on legs. I suppose the challenge is to get it to work properly on the huge variety of different stairs found out in the real world though. Lots of washing machines and other household equipment now has APIs, so interacting with buttons or touch screens might not be necessary.