LinguaCafe turns your own reading material, novels, news sites, ebooks, and video subtitles, into a private language tutor that lives entirely on your server. Import a text and every word starts out highlighted as new; as you read and mark words known, the highlighting thins out until whole pages sit clean. When an unknown word stops you, the built-in vocabulary search shows its dictionary form, so inflected verbs surface as their infinitive and nouns carry their gender, while optional DeepL translation covers anything the dictionaries miss. Marking a word adds it to your vocabulary, and multi-word selections become phrases that stay highlighted everywhere they appear again. Chapters track how many new, highlighted, and known words they contain, which makes judging a text's difficulty a glance instead of a guess. The review system cycles highlighted words through Leitner-style spaced repetition, and anything you collect can be exported or pushed straight into Anki through AnkiConnect for study on your phone. Japanese learners get kanji and radical breakdowns beside the reading pane. Everything stays local: your books, your words, and your progress never leave the machine. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. GPL-3.0 licensed.

When cybersecurity instructors and competition organizers host Capture The Flag tournaments, GZCTF orchestrates isolated per-team challenge containers, dynamic anti-cheat flags, and live exponential scoreboards from a single web platform. Event administrators can configure four distinct challenge modes covering static attachments, team-specific dynamic attachments, shared static containers, and isolated dynamic containers where unique flags are injected into each team's environment at launch. A customizable exponential scoring engine adjusts point values automatically as more teams solve a problem while awarding first, second, and third blood bonuses to top contenders. Built-in flag-sharing detection monitors every submission in real time, flagging suspicious cross-team flag reuse alongside live event streams and container logs. Participants can group into divisions, track their ranking trajectory on interactive score timelines, and upload post-game writeups directly into the portal for organizer review and batch archiving. Built-in network proxying forwards challenge traffic over WebSocket tunnels with optional packet capture so referees can audit exploit payloads during active matches. Multi-language localization, customizable branding, invitation gates, and email domain restrictions adapt the portal to university courses, corporate security drills, or international tournaments. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPL-3.0 licensed.

Turning chaotic group brainstorming sessions into structured visual diagrams, TeamMapper provides a real-time collaborative mind mapping workspace that teams and classrooms can join instantly without creating user accounts. Workshop facilitators, teachers, and product squads start from a central root topic and branch outward into hierarchical radial trees, using keyboard shortcuts and full undo-redo history to capture ideas at the speed of conversation. Every node can be styled with custom branch and background colors, adjustable font weights and sizes, external reference links, uploaded raster images, and visual pictograms from the ARASAAC library to reinforce memory and visual association. Sharing a live session takes a single click: hosts distribute either a view-only link, a full modification invite URL, or a scannable QR code so remote colleagues and students in the same room can edit branches simultaneously. When enabled by the administrator, an integrated AI assistant can automatically generate initial mind map branches and subtopics from a text prompt to jump-start planning sessions. Completed maps export cleanly to JSON, Mermaid diagram syntax, scalable SVG vectors, high-resolution PNG images, or printable PDF documents, and existing JSON maps can be re-imported at any time for follow-up workshops. Built-in privacy controls automatically purge inactive mind maps and orphaned image attachments after a configurable retention window, simplifying GDPR compliance for schools and enterprises. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.

Course creators, educators, and training academies use CourseLit to launch branded digital schools, host interactive curricula, and monetize recurring memberships without paying platform revenue cuts. The visual course builder organizes multimedia lectures, downloadable workbooks, interactive quizzes, and gated content sections with customizable release schedules. Educators can package content into multi-tiered memberships, bundled digital downloads, or individual paywalled courses with direct Stripe billing and localized currency checkouts. Built-in email marketing automation allows creators to trigger welcome broadcasts, schedule lesson drip sequences, and re-engage inactive learners based on module completion milestones. An integrated site editor builds customizable sales pages, student dashboards, and community discussion boards to foster peer engagement and lesson feedback. Administrators can monitor enrollment analytics, review customer transaction logs, issue customized completion certificates, and manage learner permissions from a centralized control panel. Granular access controls let instructors grant free preview lessons to boost conversion rates while protecting premium educational materials behind secure authentication. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. AGPL-3.0 licensed.