I find 'frugal' align very well with 'convival'. It stresses the relation of creator and tool and demands the tool to serve and not dominate or hide the task at

I find 'frugal' align very well with 'convival'. It stresses the relation of creator and tool and demands the tool to serve and not dominate or hide the task at hand but foster freedom and happiness. Also of interest: Permacomputing https://news.ycombinator.com/item?id=27199225 https://news.ycombinator.com/item?id=27199225