Categories

Jacar categories — explore the topics A rocket whose eyes follow your cursor.
Technology

XR, AR and VR in 2026: the honest state after the cycle

After the 2023-2024 hype cycle led by Apple Vision Pro, the 2025 valley of disillusionment, and the quiet but real consolidation of Meta Quest 3S and the WebXR stack, it is time to assess honestly where extended reality stands. What works, what has died, what is still alive.

Artificial Intelligence

UX for agents: first design consensus

After two years watching every product invent its own interface for talking to an agent, by January 2026 a stable design consensus is emerging about which patterns work, which do not, and what the average user already expects. Time to write down what has settled.

User Experience

European Accessibility Act: the first year in practice

La obligación del EAA entró en vigor el 28 de junio de 2025. Seis meses después tenemos ya primeros expedientes sancionadores, criterios de enforcement y lecciones operativas para equipos que aún corren detrás del calendario. Lo que sí se audita y lo que todavía no.

User Experience

Accessibility overlays: the 2025 criticisms explained

Accessibility overlays were sold as a magic fix for WCAG and the European EAA directive in one step. In 2025 lawsuits against them have grown and disabled users are speaking out more critically than ever. A look at why they fail and what to do instead.

Software Development

Qwik in production: resumable and cheap on the client

Qwik has spent two years promising apps that start instantly because, instead of hydrating, they resume execution serialized on the server. With the 1.x series settled and real cases published, this guide checks whether resumability is worth the learning curve and which products benefit most from that client-side JavaScript saving.

Tools

Figma Dev Mode: From Design to Code with Less Friction

Figma Dev Mode is the developer-facing view inside a Figma file: it generates ready CSS, exposes exact measurements, maps variables to tokens, and, with Code Connect, links each component to the real codebase snippet. It solves most of the design-to-code handoff friction, but it does not replace human judgment on accessibility, performance, or responsive behavior.

Software Development

SvelteKit 1.0 a Year Later: Real Adoption and Limits

Almost two years after 1.0, SvelteKit works in production: 30-50% lighter bundles than React, file-based routing, and no-lock-in deployment. It wins for small teams with stack freedom; it loses to Next.js when a team has heavy existing React investment or needs to hire fast.

Software Development

Next.js App Router: Lessons from Migrating Real Projects

App Router went stable in Next.js 13.4 (May 2023), bringing Server Components, layered caching, and Server Actions, but it demands rethinking the application's mental model. Migrating from Pages Router pays off for new projects and read-only routes; for large applications, the realistic path is incremental, route by route, over several months.