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Summary of significant accounting policies (Details Narrative) - USD ($)
 1 Months Ended 12 Months Ended
Feb. 28, 2025
Jun. 30, 2025
Jun. 30, 2024
Product Information [Line Items]      
Warranty description   warranties up to 12 months for home grade and light commercial customers, and up to 10 years for Commercial customers  
Deferred revenue recognized   $ 209,100 $ 238,351
Deferred revenue   335,956 209,100
Stock-based compensation   0 0
Realized gain on investments   50,675
Unrealized loss on investments   354,781
Sales and marketing expenses   416,596 351,298
Allowance for doubtful accounts receivable   585,672
Depreciation expense   9,467 10,385
Brand names cost   337,504 337,504
Goodwill   1,161,052 1,161,052
Impairment of intangible assets   $ 0 0
Potential dilutive common shares   0  
Foreign currency translation adjustment gain (loss)   $ 3,518 (13,673)
Loss from continuing operations   1,641,122 7,998,507
Cash and cash equivalents   2,890,822 939,014
Net cash outflow from operating activities   $ 1,016,390 $ 12,253,539
Capital raised in Registered Direct Offering $ 3,559,052    
Warrant [Member]      
Product Information [Line Items]      
Warrants issued on net basis   1,250,997 5,675,455
Shares for converted warrants   19,750 4,892,727
Investor [Member]      
Product Information [Line Items]      
Warrants issued on net basis   1,195,220  
Placement Agent [Member]      
Product Information [Line Items]      
Warrants issued on net basis   55,777  
IPO Underwriter [Member]      
Product Information [Line Items]      
Warrants issued on net basis     30,000
Convertible Notes Noteholder [Member]      
Product Information [Line Items]      
Warrants issued on net basis     5,645,455
Cost of Goods and Service Benchmark [Member] | Supplier Concentration Risk [Member] | Vendor One [Member]      
Product Information [Line Items]      
Concentration risk percentage   22.48% 23.68%
Cost of Goods and Service Benchmark [Member] | Supplier Concentration Risk [Member] | Vendor Two [Member]      
Product Information [Line Items]      
Concentration risk percentage   18.54% 16.83%
Cost of Goods and Service Benchmark [Member] | Supplier Concentration Risk [Member] | Vendor Three [Member]      
Product Information [Line Items]      
Concentration risk percentage   10.92%  
Trade Payables [Member] | Supplier Concentration Risk [Member] | Top Three Vendors [Member]      
Product Information [Line Items]      
Concentration risk percentage   44.00% 60.00%