I built an old kitchen chair around a pedal bin with the compost right by the toilet roll holder. There’s some timber on the chair and a foot stool to add extra comfort. We have a shell pool for a roof in case of rain. We have solar panel lights for night time bathroom needs. We have a wonderful open air shower for in the sun or under the stars complete with shelf for toiletries and a washing line for hanging up clothes or towels while showering.