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Convertible debentures, Embedded Derivative Liabilities (Details) - USD ($)	3 Months Ended		12 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Jul. 31, 2025	Jul. 31, 2024
Embedded Derivative Liabilities [Abstract]
Balance beginning period	$ 72,500
Change in fair value of derivative liabilities	1,500	$ 1,348,350
Balance end period	74,000		$ 72,500
Related Party [Member] | Envviron SAS [Member]
Embedded Derivative Liabilities [Abstract]
Balance beginning period	72,500	$ 919,250	919,250
Derivative liability component			138,250
Change in fair value of derivative liabilities	1,500		(719,000)
Transferred to equity			(266,000)
Balance end period	$ 74,000		72,500	$ 919,250
Transaction costs			85,000
Related Party [Member] | Envviron SAS [Member] | General and Administrative Expenses [Member]
Embedded Derivative Liabilities [Abstract]
Transaction costs				40,227
Host financial liability				36,484
Embedded derivative				$ 3,743
Related Party [Member] | Envviron SAS [Member] | Convertible Debentures [Member]
Embedded Derivative Liabilities [Abstract]
Transaction costs			$ 85,000

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- Definition

Fair value of the embedded derivative or group of embedded derivatives included in earnings in the period.

+ References

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The fair value share amount transferred through equity.

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Amount allocated to host financial liability in connection with issuance of convertible debentures.

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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 10
-Publisher FASB
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Net Increase or Decrease in the fair value of the embedded derivative or group of embedded derivatives included in earnings in the period.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
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-Paragraph 4A
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The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

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The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.

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