The core idea is intentionally simple:
reduce direct interaction with volatile frontend components
isolate playback inside a hardened UI sandbox
delegate filtering entirely to the local AdGuard VPN/Proxy stack
minimize runtime complexity and maintenance surface
The runtime itself contains:
no internal ad-blocking engine
no binary patching
no API spoofing
no accessibility hooks
no proprietary binary modifications
Main characteristics:
0 Android permissions
no background services
no wake locks
no telemetry
no persistent processes
The primary objective of the experiment is not to “fight” upstream platforms directly, but to explore whether constrained execution environments can significantly reduce the long-term maintenance overhead traditionally associated with frontend-dependent approaches.
To preserve the strict zero-privilege architecture, MediaSession and Picture-in-Picture background handling were intentionally removed from this Proof of Concept. Achieving seamless PiP persistence without foreground-service privileges remains an open technical challenge.
APK builds and demonstration videos are available here:
https://github.com/FUNFACTOR1/PURECAST
Curious to hear technical feedback from the community.
The core idea is intentionally simple:
reduce direct interaction with volatile frontend components
isolate playback inside a hardened UI sandbox
delegate filtering entirely to the local AdGuard VPN/Proxy stack
minimize runtime complexity and maintenance surface
The runtime itself contains:
no internal ad-blocking engine
no binary patching
no API spoofing
no accessibility hooks
no proprietary binary modifications
Main characteristics:
0 Android permissions
no background services
no wake locks
no telemetry
no persistent processes
The primary objective of the experiment is not to “fight” upstream platforms directly, but to explore whether constrained execution environments can significantly reduce the long-term maintenance overhead traditionally associated with frontend-dependent approaches.
To preserve the strict zero-privilege architecture, MediaSession and Picture-in-Picture background handling were intentionally removed from this Proof of Concept. Achieving seamless PiP persistence without foreground-service privileges remains an open technical challenge.
APK builds and demonstration videos are available here:
https://github.com/FUNFACTOR1/PURECAST
Curious to hear technical feedback from the community.