Prisma

Prisma is a unified, resource-optimized multimedia viewer and catalog reader built with Flutter. It brings together popular booru imageboards, creator galleries, manga repositories, and light novel libraries into a cohesive, fluid Material 3 interface across Android, Linux, Windows, and macOS.

Core Capabilities: Media & Feed Browsing: Adaptive Layouts: Pinterest-style masonry grid, fixed aspect ratio grids, and compact list modes. Hardware-Accelerated Media Player: High-definition video player powered by media_kit (mpv), featuring gesture-driven controls, audio track toggles, and seamless looping. Deep Zoom & Notes Overlay: Interactive high-resolution viewer with pinch-to-zoom, translation notes overlay, and multi-asset carousels.

Manga & Light Novel Hub: Integrated Catalogs: Direct access to titles from MangaDex, MangaLib, and RanobeLib. Versatile Reading Modes: Webtoon: Smooth vertical continuous scroll with hardware-accelerated image pipeline. Manga Reader: Traditional right-to-left (RTL) and left-to-right (LTR) page-by-page viewing. Light Novel Reader: Dedicated typography engine with custom font scaling, line height, and reader color schemes. Personal Library Management: Track reading status (Reading, Plan to Read, Completed, On Hold, Dropped) with automated chapter progress synchronization and offline reading support.

Tag Engine & Discovery Sub-Millisecond Tag Autocomplete: Instant search suggestions across millions of booru tags. Complex Query Syntax: Multi-tag queries, boolean exclusions (-tag), exact matching, rating filters, and source switching without resetting parameters. Artist Hub: Explore creator portfolios with direct integration into creator platforms. Performance & Memory Architecture Sliding-Window Memory Management: Active post carousel isolates memory consumption to immediate adjacent pages ( ± 1 ), aggressively evicting distant decoders from RAM.

Smart Memory GC & Watchdog: Proactively responds to system memory pressure signals and keeps application footprint under tight control during extended browsing sessions. Built-in Resource Monitor & Floating HUD: Real-time diagnostic overlays displaying physical RSS RAM, Peak usage, image cache allocations, process CPU %, and engine frame rates (FPS).

Offline Storage & Sync: Configurable Downloader: Template-based file organization (e.g. {Artist}/{ID}) with integrated download manager. Cross-Service Bookmarks: Local collections, favorite posts, and Pawchive two-way synchronization. Strict Content Filtering: Global blacklist, whitelist, and discreet blur filters for sensitive material.

Supported Sources: Booru & Art Imageboards: Provider Protocol / API Gelbooru XML / JSON API Rule34 Gelbooru-based API Safebooru Gelbooru-based API Realbooru HTML / Scraper e621 / e926 Native REST API Pixiv Session Auth Pawchive Creator Sync

Manga & Light Novels: Provider Type Content MangaDex Manga International scanlations, multi-language chapter support MangaLib Manga Comprehensive catalog with volume indexing RanobeLib Light Novel Formatted text reader with rich chapter styling.

License MIT