A blazingly fast, local-first calendar + task manager — built for engineers, zero AI, instant interactions
Next.js, TypeScript, React, Tailwind CSS, shadcn/ui, trud-calendar, Dexie.js
Follow these steps to run the app locally:
git clone https://github.com/lassestilvang/devpost-spec-driven-development.git
cd devpost-spec-driven-development
npm install
npm run dev
# Open http://localhost:3000 in your browser- Split Layout: To-do sidebar (left) + calendar (right)
- Three Calendar Views: Day (single 24-hour column), Week (default 24-hour grid), Month (date grid with colored event indicators)
- View Switching: Top navigation buttons, smooth horizontal scroll, "jump to today" button
- To-Do Management: Create tasks via input field, checkbox + title items, scrollable list
- Drag-to-Schedule: Drag to-dos from sidebar to calendar (30min default duration, removed from sidebar on drop)
- Click-to-Create: Click empty time slots to create events at clicked time (30min default)
- Event Interactions: Resize (drag bottom edge), drag to reschedule (same/不同 day), edit title (click event), delete event
- Overlapping Events: Layered but readable design
- Local Persistence: All data stored in browser IndexedDB, survives app restarts
- Performance: Virtual scrolling where needed, zero loading states, instant interactions, buttery smooth drag-and-drop
- Framework: Next.js (App Router)
- Language: TypeScript
- UI: React, Tailwind CSS, shadcn/ui
- Calendar: trud-calendar
- Persistence: Dexie.js (IndexedDB wrapper)
- Styling: Dark theme with neon blue/purple accents, circuit board textures, monospace typography
Morgen-inspired clean/minimal aesthetic with:
- Dark theme base
- Neon blue/purple accent colors
- Subtle circuit board textures
- Monospace typography
- Rounded corners and soft shadows
This is a local-first app — all data is stored in your browser's IndexedDB. No backend, no cloud sync.