Interestingly there is a DIN standard for open source hardware https://www.dinmedia.de/en/technical-rule/din-spec-3105-1/324805763 https://www.dinmedia.de/en/te

Interestingly there is a DIN standard for open source hardware https://www.dinmedia.de/en/technical-rule/din-spec-3105-1/324805763 https://www.dinmedia.de/en/technical-rule/din-spec-3105-1/32...