v3.26.1
Summary of significant accounting policies (Details - Cumulative translation adjustments) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Accounting Policies [Abstract]        
Beginning balance     $ 3,470  
Foreign currency translation adjustment related to Rotor Lab $ 15,314 $ 0 34,744 $ 0
Ending balance $ 38,214   $ 38,214