You can publish your iOS source code and let your end-users compile and load the app onto their own devices, and do so without paying any commissions to Apple.
If you were to compile it yourself such that the end-user device would need to be jailbroken because it lacks the necessary digital signatures, IANAL but I think this would be totally fine on your part, and the end-user would be protected by the jail-breaking exception to the DMCA;
> Jailbreaking and Unlocking Smartphones and Tablets
Since 2010, the DMCA has allowed users to jailbreak their smartphones in order to execute lawfully obtained applications unauthorized by the phone manufacturer. Last week’s announcement reaffirmed the rationale that using unapproved applications on smartphones is fair use and limiting users’ ability to execute such applications hinders choice and impairs innovation.
Your customers can't actually do this without downloading XCode and agreeing to its license agreements. Just downloading XCode is an impossible ask, to say nothing of compiling and deploying to a phone.
If you were to compile it yourself such that the end-user device would need to be jailbroken because it lacks the necessary digital signatures, IANAL but I think this would be totally fine on your part, and the end-user would be protected by the jail-breaking exception to the DMCA;
> Jailbreaking and Unlocking Smartphones and Tablets
Since 2010, the DMCA has allowed users to jailbreak their smartphones in order to execute lawfully obtained applications unauthorized by the phone manufacturer. Last week’s announcement reaffirmed the rationale that using unapproved applications on smartphones is fair use and limiting users’ ability to execute such applications hinders choice and impairs innovation.
https://jolt.law.harvard.edu/digest/latest-dmca-exemptions-r...