Theorem v1.5.7

Fixed

• Mobile EPUB Navigation & Image Rendering Stabilization — Restored immediate, fluid page turns and eliminated blank pages across illustrated and media-rich EPUBs:
  • In foliate-js-runtime/paginator.js, eliminated the blocking pre-layout image decoding wait and 200ms visibility: hidden blanking, restoring immediate synchronous layout rendering and zero-latency #turnPage resolution.
  • Fixed CSS multi-column fragmentation: removed break-inside: avoid and -webkit-column-break-inside: avoid on parent <p>, <div>, and <figure> containers that caused the browser column formatter to abandon columns and generate blank pages before images.
  • Removed display: block and height: auto !important overrides on img elements, preserving natural aspect ratios and fluid column fitting with object-fit: contain.
  • Calibrated touch gesture axis locking to 10px with natural horizontal dominance, preventing swipe drops on diagonal thumb arcs.
  • Preserved chapter blob URLs during active reading sessions to prevent broken image assets on previous-chapter navigation.
  • Fixed iframe initial visibility transition ensuring content is immediately rendered visible upon load completion.
• Ghost Book Elimination on P2P Sync Deletions — Fixed ghost book cards remaining in the library when a book was deleted on a paired peer:
  • In src-tauri/src/file_transfer.rs, added checks against deletion_tombstones and deletedAt metadata, returning an explicit PEER_BOOK_DELETED status if a requested book has been deleted.
  • In src/core/lib/sync-orchestrator.ts, immediately merged incoming deletion_tombstones over Iroh gossip and purged deleted book cards from local state without delay.
  • In src/features/reader/Reader.tsx, handled PEER_BOOK_DELETED by pruning the local ghost card, displaying an informative toast ("This book was deleted on the source device."), and routing to the Library.
• Android Hardware Back Button Navigation Stack — Intercepted Tauri onCloseRequested / hardware back button events in src/App.tsx:
  • Dismisses active overlays, sheets, and reader panels in LIFO order via dispatchBackAction().
  • Navigates from Reader view back to Library before closing.
  • Minimizes or exits the app only when on the root Library route with no active overlays.

Improved & Performance

• Note Export Clean Typography & Knap AST Templating —
  • In src-tauri/src/vault_export.rs and src/core/lib/vault-sync.ts, cleaned YAML frontmatter to include only essential properties (title, author, type: "theorem-book-highlights", single total_highlights: N, and tags: [theorem, highlights]), removing internal paths, formats, and redundant duplicate counts.
  • Overhauled Markdown body formatting: removed artificial numbered headings (### 1. Highlight), redundant color labels, timestamps, and divider lines. Quotes are formatted cleanly as > ==quote== with user notes placed directly underneath.
  • Integrated @obsidianmd/knap AST template engine in frontend export settings for safe, custom Markdown templates with 0 bytes added to the native Rust binary.
• SQLite Memory Reclaim & Low-Memory OS Trimming —
  • Enhanced native trim_memory command in src-tauri/src/database.rs and lib.rs to run PRAGMA shrink_memory; and PRAGMA wal_checkpoint(PASSIVE); on SQLite connections alongside libc::malloc_trim(0) on Linux and Android Bionic mallopt(-101, 0) (M_PURGE).
  • Wired document.visibilityState === 'hidden' in src/App.tsx to automatically trigger trim_memory whenever Theorem is minimized or backgrounded, preventing background process termination by the Android OS Low Memory Killer (LMK).
• Native Rust Readability Engine — Integrated Mozilla's Readability port in Rust (readability crate) with full DOM scoring into src-tauri/src/article_extractor.rs, parsing and scoring article HTML in Rust in <3ms.
• Store & Build Modernization —
  • Declared explicit ESM module type ("type": "module") in package.json for full Vite 8 native configuration loader compliance.
  • Optimized O(1) library store lookups in libraryStore.ts via direct iterator access, eliminating transient array allocations during large library hydration.

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Download & install

Platform	Download
Windows (x64)	Theorem_1.5.7_x64-setup.exe
macOS (Apple Silicon)	Theorem_1.5.7_aarch64.dmg
macOS (Intel)	Theorem_1.5.7_x64.dmg
Linux (Debian/Ubuntu)	Theorem_1.5.7_amd64.deb
Linux (any)	Theorem_1.5.7_amd64.AppImage
Android (arm64)	app-arm64-release.apk
Android (arm)	app-arm-release.apk
Android (x86_64)	app-x86_64-release.apk

Linux one-liner: curl -fsSL https://raw.githubusercontent.com/Fundaments-Work/Theorem/main/scripts/install-linux.sh | bash

Desktop builds auto-update in place (Settings → About → Check for Updates). Android updates are manual unless installed via F-Droid.