Open source appropriate technology

appropriate technology from the open-design movement

en-US/ˈoʊpən soʊɹs əˈpɹoʊpɹiɪt tɛkˈnɑləd͡ʒi/
en-GB/ˈəʊpən ˈsɔːs əˈpɹəʊpɹɪeɪt tɛkˈnɒləd͡ʒɪ/

ক্যাটাগরি:

appropriate technology