Velt
Velt is a full-stack collaboration SDK that enables developers to embed rich, real-time, and asynchronous collaboration features into web applications with minimal effort. With Velt, you can add contextual comments (à la Figma or Google Docs), live presence indicators, shared editing, “follow me” view modes, and Slack/Meet-style huddles (audio, video, screen sharing). Velt also offers built-in Loom-style recording (screen, camera, or audio), complete with AI-powered transcription and auto-summaries, so users can leave video or voice feedback and later search or scrub to relevant bits. Additional collaboration tools include in-app notifications, mentions, reactions, arrows/highlights for annotation, analytics dashboards for tracking engagement, and flexible UI components you can style to match your app’s branding. It handles all the complexity, real-time syncing, conflict resolution (via CRDTs), offline handling, scaling, and optional self-hosting.
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Solid
Solid stands on the shoulders of giants, particularly in React and Knockout. If you've developed using React Hooks, Solid will come naturally to you. In fact, more natural, since the Solid model is simpler, without the rules of the Hooks. Each component is executed once and it is the Hooks and bindings that are executed as many times as the dependencies are updated. Solid follows the same philosophy as React with one-way data flow, read/write segregation, and immutable interfaces. At the same time, it has a completely different implementation by dispensing with the Virtual DOM.
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Remotion
Remotion is a programmatic video creation framework that lets you make real MP4 and other video formats using React code by treating video as a function of frames and rendering components over time, leveraging familiar web technologies such as CSS, Canvas, SVG, and JavaScript to design, animate, and parameterize dynamic content with data, APIs, and interactivity. It includes tools like Remotion Studio for previewing and rendering, Remotion Player for embedding and reacting to data at runtime, Remotion Lambda for scalable server-side or serverless rendering, and additional components like timeline editing, recorder tools, and editor starter templates for building custom video editing applications with React and TypeScript. It supports scalable rendering locally or in the cloud, dynamic editing of props through a visual interface, and fine-grained animation via React hooks and interpolation utilities.
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IntenseDebate
IntenseDebate is a feature-rich comment system for WordPress, Blogger, Tumblr and many other blogging/CMS platforms. Enable your users to see who they're debating with. Rich profiles and the ability to connect with people make IntenseDebate a very useful widget. IntenseDebate email notifications alert you and your readers of new comments, encouraging return visits and additional comments. You can reply to and moderate comments via email, while threading makes it easy to follow the conversation. Auto-delete comments by keyword, email, and IP addresses, or ban users from posting. Akismet keeps the spam at bay. Assign additional admins to manage the same blog/website. Auto-filter comments by keyword, email, and IP addresses. Let your readers post comments using services like Facebook and Twitter. They can also sign up for an IntenseDebate profile or simply comment without one as a Guest.
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