# FreedomBox ## Identification [[Storage Access Framework|SAF]] is Android's user-mediated document/storage access layer. F-Droid, APKPure, and APKMirror are distribution sources with different governance models. [[Android Open Source Project|AOSP]] is the Android base; Ubuntu Touch, PinePhone, and Librem 5 represent alternate mobile OS/hardware paths. Firebase is centralized backend infrastructure; Tor, OpenVPN, and FreedomBox provide privacy, secure transport, and self-hosting. ## Notebook evidence - [[Scanned_20260730-1659#PDF page 25 — Storage Access Framework and open mobile infrastructure map|PDF page 25: Storage Access Framework and open mobile infrastructure map]] — The page sketches an unusually coherent **sovereign-mobile stack**. Android’s Storage Access Framework mediates user-approved document access; Android documentation requires third-party apps to use it for portable storage. F-Droid/APKPure/APKMirror supply software, AOSP supplies the base operating system, Ubuntu Touch/PinePhone/Librem 5 represent alternative mobile platforms and hardware, Firebase supplies backend services, and Tor/OpenVPN/FreedomBox supply privacy and self-hosting. ## Relationships and overlays The source places this record in an evidence cluster with [[Android Open Source Project|Android Open Source Project]] · [[APKMirror|APKMirror]] · [[APKPure|APKPure]] · [[F-Droid|F-Droid]] · [[Firebase|Firebase]] · [[Librem 5|Librem 5]] · [[OpenVPN|OpenVPN]] · [[PinePhone|PinePhone]] · [[Storage Access Framework|Storage Access Framework]] · [[Tor|Tor]] · [[Ubuntu Touch|Ubuntu Touch]]. The occurrence contributes to the notebook's larger model of [[Identity Continuity|identity continuity]], [[Device Sovereignty|device sovereignty]], and [[Continuity Architecture|continuity architecture]]. ## Evidentiary status and open leads Determine whether this was a deployable architecture or a survey; identify the intended self-hosted alternative to Firebase. ## Source - [[Scanned_20260730-1659|Scanned_20260730-1659]] ## Scanned_20260730-1235 overlay [[Scanned_20260730-1235#Scanned_20260730-1235.pdf — PDF page 40|PDF page 40]] places FreedomBox in the closing cross-platform taxonomy of remote services, media systems, repair tools, and user-controlled infrastructure. This extends the sovereign-mobile architecture in `Scanned_20260730-1659` toward a general self-hosted endpoint in a universal access environment.