Get ready to transform your digital bookshelf with Audiobookshelf, the self-hosted maestro of audiobooks and podcasts! Imagine a world where your audio tales and talk shows are not just thrown into a digital pile, but are sorted with the finesse of a librarian who's had one too many espressos. Audiobookshelf thrives on a neat directory diet, feasting on the juicy details of folder names to serve up author bios, series sagas, tantalizing titles, publication dates, and more, right to your ears. It's like having a personal DJ for your books, spinning metadata tags into a symphony of organized bliss. And for the tech-savvy, it's as customizable as your grandma's secret cookie recipe, with all the Docker container spices you love. Hosted on RepoCloud, where your wallet can take a breather from those high-flying cloud hosting fees, Audiobookshelf is the VIP lounge for your audiobooks and podcasts, all on your own server with the sleek Easypanel as your bouncer. Queue up, tune in, and get lost in your perfectly curated audio universe with Audiobookshelf!

Step right up to the survey fiesta with LimeSurvey, the undisputed heavyweight champion of the survey world! This zesty platform is your golden ticket to survey nirvana, where you can whip up everything from a breezy poll to a brain-busting questionnaire with more twists and turns than a telenovela. Perfect for the curious student, the savvy professional, or the enterprise with questions galore, LimeSurvey is the Swiss Army knife of feedback tools – and it won't cost you a dime! Wave goodbye to the yawn-inducing forms of yesteryear and say 'Hola!' to a world where conditional logic dances the salsa with complex validation rules. And for the scholarly crowd, LimeSurvey rolls out the red carpet, offering a treasure trove of open-source goodies that'll make research institutes and universities do the academic conga. With templates so user-friendly they practically hold your hand, and a customer service squad ready to leap to your aid, LimeSurvey hosted on RepoCloud is the piñata of possibilities – just waiting for you to take a swing!

The drawing surface inside WebRTC conference tools like Meetzi and the LAMS online-learning platform is Whiteboard (by cracker0dks) - a lightweight Node.js collaborative sketchboard built to be embedded and customized, which also slots into Nextcloud via the External Sites app. Everyone opening the same whiteboardid URL parameter draws on the same board, with remote user cursors visible live, per-user undo/redo, and an indicator showing the smallest participating screen so nobody draws outside a colleague's view. Content handling goes beyond pen strokes: drag-and-drop or paste images and PDFs from any PC or browser, then resize, rotate, and draw over them on canvas or background; add text and sticky notes; hold Shift for angle-snapped lines and perfect squares. Every function has a keybinding - deliberately friendly to pen displays like Wacom and XP-Pen whose hardware buttons map to shortcuts. Boards save to image or JSON (with reload), export directly to Nextcloud via WebDAV, and persist across restarts with the file-database option. A REST API with bundled interactive docs allows full programmatic control, an optional access token locks down uploads, and YAML configuration tunes behavior and performance. MIT-licensed and reverse-proxy friendly.

A Node.js server, a large shared canvas, and a URL - WBO (Whiteboard Ophir) is collaborative whiteboarding reduced to its essence. There are no accounts and no setup - to collaborate, you send someone the board's link, and every stroke appears for all connected users in real time over WebSockets, with cursor positions shared so you can see where collaborators are working. Board state persists automatically and continuously, so a diagram drawn in today's lesson is still there next week at the same URL. Boards come in three flavors: a public free-for-all, private boards with random unguessable names, and named boards with custom URLs shared by anyone who knows the name. The tools cover teaching and brainstorming needs - pencil, straight lines, rectangles, ellipses, text annotations, eraser, a full color palette with brush sizes - and boards export as SVG or PNG. Despite the simplicity, the server is production-minded: JWT authentication gates board access with granular capabilities (open, edit, and clear as separate permissions), rate limiting caps per-client message volume, reverse-proxy and subpath deployment are supported, and OpenTelemetry provides metrics, logs, and traces. It works on tablets and touch devices, speaks multiple languages, and consumes minimal resources. AGPL-licensed.