Accounts payable and accrued liabilities (Details) - USD ($)	Jun. 30, 2025	Dec. 31, 2024
Accounts payable and accrued liabilities
Accounts payable	$ 343,329	$ 48,195
Accrued interest	90,321	51,663
Credit card	939	4,540
Sales tax payable	61,987	11,737
Other liabilities	36,409	70,849
Accounts payable and accrued liabilities	$ 532,985	$ 186,984