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Building OfficeTeamBoard: A Modern Kanban Solution for Remote Teams

Sascha Оффлайн

Sascha

Заместитель Администратора
Команда форума
Администратор
Регистрация
9 Май 2015
Сообщения
1,483
Баллы
155
This is a submission for the

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What I Built


OfficeTeamBoard is a modern, collaborative Kanban board designed specifically for remote teams. It combines intuitive task management with real-time collaboration features, offering priority-based sorting, customizable workflows, and a mobile-first responsive design.

Key Features:

  • Smart Priority System: Color-coded priority levels with automatic sorting
  • Real-time Collaboration: Live comments and task updates with WebSocket integration
  • Customizable Columns: Drag-and-drop column reordering and custom status creation
  • Advanced Search & Filtering: Full-text search with regex support and multi-criteria filters
  • Accessibility First: Full keyboard navigation and screen reader support
  • Offline Capability: Local storage persistence with sync recovery
  • Team Analytics: Sprint velocity tracking and burndown charts
Demo


🚀 Live Demo:

Пожалуйста Авторизируйтесь или Зарегистрируйтесь для просмотра скрытого текста.




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Main dashboard showing multi-column Kanban view with priority indicators


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Task detail modal with comment system and priority assignment


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Mobile-optimized interface with touch-friendly interactions

How I Built It

Tech Stack & Architecture


// Core Dependencies
{
"react": "^18.2.0",
"typescript": "^5.0.0",
"tailwindcss": "^3.3.0",
"zustand": "^4.3.0",
"react-beautiful-dnd": "^13.1.1",
"framer-motion": "^10.12.0",
"react-hook-form": "^7.45.0"
}



Key Technical Decisions


State Management with Zustand:


const useTaskStore = create((set, get) => ({
tasks: [],
columns: defaultColumns,
filters: {},

updateTask: (taskId, updates) => set((state) => ({
tasks: state.tasks.map(task =>
task.id === taskId ? { ...task, ...updates } : task
)
})),

// Optimistic updates for real-time feel
moveTask: (taskId, destinationColumn) => {
const state = get();
// Immediate UI update
set(moveTaskOptimistic(state, taskId, destinationColumn));
// Background sync
syncTaskMove(taskId, destinationColumn);
}
}));




Custom Drag & Drop Implementation:
I chose react-beautiful-dnd for its accessibility features but enhanced it with touch support:


const TouchDragHandler = ({ children, dragHandleProps }) => {
const handleTouchStart = (e) => {
// Prevent default touch behaviors
e.preventDefault();
// Custom touch tracking for mobile
initTouchDrag(e.touches[0]);
};

return (
<div
{...dragHandleProps}
onTouchStart={handleTouchStart}
onTouchMove={handleTouchMove}
onTouchEnd={handleTouchEnd}
>
{children}
</div>
);
};




Performance Optimizations:

  • Virtualized rendering for large task lists using react-window
  • Memoized task components with React.memo
  • Debounced search with useCallback optimization
  • Lazy loading of task comments and attachments
UX Design Philosophy


Information Hierarchy:
I implemented a clear visual hierarchy using Tailwind's spacing system:

  • Priority indicators use consistent color coding (red=urgent, orange=high, blue=medium, gray=low)
  • Card shadows increase with priority level for subconscious recognition
  • Typography scales create natural reading patterns

Micro-interactions:
Every interaction provides immediate feedback:


.task-card {
@apply transform transition-all duration-200 hover:scale-105 hover:shadow-lg;
}

.task-card[data-priority="urgent"] {
@apply border-l-4 border-red-500 shadow-red-100;
}



Lessons Learned

1. Accessibility in Drag & Drop Interfaces


Initially, screen readers couldn't navigate the Kanban board effectively. I learned to implement:

Keyboard Navigation:


const useKeyboardDrag = () => {
const handleKeyDown = (e, taskId) => {
if (e.key === 'Enter' || e.key === ' ') {
toggleDragMode(taskId);
}
if (e.key === 'ArrowRight' && dragMode) {
moveToNextColumn(taskId);
}
};

return { handleKeyDown, dragMode };
};




ARIA Labels for Context:


<div
role="button"
aria-label={`Task: ${task.title}. Priority: ${task.priority}. In ${column.name} column. Press Enter to start moving.`}
aria-describedby={`task-${task.id}-details`}
>



2. Mobile-First Drag & Drop Challenges


Desktop drag & drop doesn't translate directly to touch devices. Key learnings:

  • Touch Events vs Pointer Events: Pointer events provide better cross-device compatibility
  • Visual Feedback: Mobile users need stronger visual cues during drag operations
  • Hit Targets: Minimum 44px touch targets for accessibility compliance

Custom Touch Implementation:


const useTouchDrag = () => {
const [isDragging, setIsDragging] = useState(false);
const [dragPreview, setDragPreview] = useState(null);

const startDrag = (e, element) => {
setIsDragging(true);
// Create visual drag preview
const preview = element.cloneNode(true);
preview.style.opacity = '0.8';
preview.style.transform = 'rotate(5deg)';
setDragPreview(preview);
};
};



3. Performance with Large Datasets


Real teams can have hundreds of tasks. I learned to optimize for scale:

Virtual Scrolling Implementation:


const VirtualTaskList = ({ tasks, height = 400 }) => {
const { scrollElementRef, outerRef, innerRef, visibleItems } =
useVirtualScroll({
items: tasks,
itemHeight: 120,
containerHeight: height,
overscan: 5
});

return (
<div ref={outerRef} style={{ height }}>
<div ref={innerRef}>
{visibleItems.map(({ item, index }) => (
<TaskCard key={item.id} task={item} index={index} />
))}
</div>
</div>
);
};



4. Real-time Collaboration Complexity


Implementing live updates without conflicts required careful state management:

Optimistic Updates with Rollback:


const useOptimisticUpdates = () => {
const [pendingUpdates, setPendingUpdates] = useState([]);

const optimisticUpdate = async (updateFn, apiCall) => {
const rollbackData = getCurrentState();
const updateId = generateId();

try {
// Apply optimistic update
updateFn();
setPendingUpdates(prev => [...prev, { id: updateId, rollbackData }]);

// Sync with server
await apiCall();

// Remove from pending on success
setPendingUpdates(prev => prev.filter(u => u.id !== updateId));
} catch (error) {
// Rollback on failure
rollbackToState(rollbackData);
setPendingUpdates(prev => prev.filter(u => u.id !== updateId));
}
};
};



5. User Testing Insights


Testing with actual remote teams revealed surprising UX gaps:

  • Color Blindness: 8% of users couldn't distinguish priority colors - added icon indicators
  • Cognitive Load: Too many options overwhelmed new users - introduced progressive disclosure
  • Notification Fatigue: Real-time updates became distracting - added smart notification grouping

Smart Notification System:


const useSmartNotifications = () => {
const [notifications, setNotifications] = useState([]);

const addNotification = (notification) => {
// Group similar notifications
const similar = notifications.find(n =>
n.type === notification.type &&
n.taskId === notification.taskId
);

if (similar) {
// Update existing notification
updateNotification(similar.id, {
count: (similar.count || 1) + 1,
timestamp: Date.now()
});
} else {
// Add new notification
setNotifications(prev => [...prev, notification]);
}
};
};



Conclusion


Building OfficeTeamBoard taught me that modern web applications require more than just feature completeness - they need thoughtful UX design, performance optimization, and inclusive accessibility. The challenge pushed me to think beyond traditional desktop experiences and consider the full spectrum of user needs and device capabilities.

The live demo showcases how technical excellence and user-centered design can create tools that genuinely improve team productivity. Every interaction, from the satisfying drag animations to the intelligent notification system, contributes to an experience that feels both powerful and approachable.

Tech Stack Summary:

  • Frontend: React 18, TypeScript, Tailwind CSS
  • State: Zustand with persistence
  • Animations: Framer Motion
  • Build: Vite with custom plugins
  • Deployment: Vercel with edge functions
  • Testing: Vitest + React Testing Library

This is a submission for the

Пожалуйста Авторизируйтесь или Зарегистрируйтесь для просмотра скрытого текста.



What I Built


OfficeTeamBoard is a modern, collaborative Kanban board designed specifically for remote teams. It combines intuitive task management with real-time collaboration features, offering priority-based sorting, customizable workflows, and a mobile-first responsive design.

Key Features:

  • Smart Priority System: Color-coded priority levels with automatic sorting
  • Real-time Collaboration: Live comments and task updates with WebSocket integration
  • Customizable Columns: Drag-and-drop column reordering and custom status creation
  • Advanced Search & Filtering: Full-text search with regex support and multi-criteria filters
  • Accessibility First: Full keyboard navigation and screen reader support
  • Offline Capability: Local storage persistence with sync recovery
  • Team Analytics: Sprint velocity tracking and burndown charts
Demo


🚀 Live Demo:

Пожалуйста Авторизируйтесь или Зарегистрируйтесь для просмотра скрытого текста.




Пожалуйста Авторизируйтесь или Зарегистрируйтесь для просмотра скрытого текста.


Main dashboard showing multi-column Kanban view with priority indicators


Пожалуйста Авторизируйтесь или Зарегистрируйтесь для просмотра скрытого текста.


Task detail modal with comment system and priority assignment


Пожалуйста Авторизируйтесь или Зарегистрируйтесь для просмотра скрытого текста.


Mobile-optimized interface with touch-friendly interactions

How I Built It

Tech Stack & Architecture


// Core Dependencies
{
"react": "^18.2.0",
"typescript": "^5.0.0",
"tailwindcss": "^3.3.0",
"zustand": "^4.3.0",
"react-beautiful-dnd": "^13.1.1",
"framer-motion": "^10.12.0",
"react-hook-form": "^7.45.0"
}



Key Technical Decisions


State Management with Zustand:


const useTaskStore = create((set, get) => ({
tasks: [],
columns: defaultColumns,
filters: {},

updateTask: (taskId, updates) => set((state) => ({
tasks: state.tasks.map(task =>
task.id === taskId ? { ...task, ...updates } : task
)
})),

// Optimistic updates for real-time feel
moveTask: (taskId, destinationColumn) => {
const state = get();
// Immediate UI update
set(moveTaskOptimistic(state, taskId, destinationColumn));
// Background sync
syncTaskMove(taskId, destinationColumn);
}
}));




Custom Drag & Drop Implementation:
I chose react-beautiful-dnd for its accessibility features but enhanced it with touch support:


const TouchDragHandler = ({ children, dragHandleProps }) => {
const handleTouchStart = (e) => {
// Prevent default touch behaviors
e.preventDefault();
// Custom touch tracking for mobile
initTouchDrag(e.touches[0]);
};

return (
<div
{...dragHandleProps}
onTouchStart={handleTouchStart}
onTouchMove={handleTouchMove}
onTouchEnd={handleTouchEnd}
>
{children}
</div>
);
};




Performance Optimizations:

  • Virtualized rendering for large task lists using react-window
  • Memoized task components with React.memo
  • Debounced search with useCallback optimization
  • Lazy loading of task comments and attachments
UX Design Philosophy


Information Hierarchy:
I implemented a clear visual hierarchy using Tailwind's spacing system:

  • Priority indicators use consistent color coding (red=urgent, orange=high, blue=medium, gray=low)
  • Card shadows increase with priority level for subconscious recognition
  • Typography scales create natural reading patterns

Micro-interactions:
Every interaction provides immediate feedback:


.task-card {
@apply transform transition-all duration-200 hover:scale-105 hover:shadow-lg;
}

.task-card[data-priority="urgent"] {
@apply border-l-4 border-red-500 shadow-red-100;
}



Lessons Learned

1. Accessibility in Drag & Drop Interfaces


Initially, screen readers couldn't navigate the Kanban board effectively. I learned to implement:

Keyboard Navigation:


const useKeyboardDrag = () => {
const handleKeyDown = (e, taskId) => {
if (e.key === 'Enter' || e.key === ' ') {
toggleDragMode(taskId);
}
if (e.key === 'ArrowRight' && dragMode) {
moveToNextColumn(taskId);
}
};

return { handleKeyDown, dragMode };
};




ARIA Labels for Context:


<div
role="button"
aria-label={`Task: ${task.title}. Priority: ${task.priority}. In ${column.name} column. Press Enter to start moving.`}
aria-describedby={`task-${task.id}-details`}
>



2. Mobile-First Drag & Drop Challenges


Desktop drag & drop doesn't translate directly to touch devices. Key learnings:

  • Touch Events vs Pointer Events: Pointer events provide better cross-device compatibility
  • Visual Feedback: Mobile users need stronger visual cues during drag operations
  • Hit Targets: Minimum 44px touch targets for accessibility compliance

Custom Touch Implementation:


const useTouchDrag = () => {
const [isDragging, setIsDragging] = useState(false);
const [dragPreview, setDragPreview] = useState(null);

const startDrag = (e, element) => {
setIsDragging(true);
// Create visual drag preview
const preview = element.cloneNode(true);
preview.style.opacity = '0.8';
preview.style.transform = 'rotate(5deg)';
setDragPreview(preview);
};
};



3. Performance with Large Datasets


Real teams can have hundreds of tasks. I learned to optimize for scale:

Virtual Scrolling Implementation:


const VirtualTaskList = ({ tasks, height = 400 }) => {
const { scrollElementRef, outerRef, innerRef, visibleItems } =
useVirtualScroll({
items: tasks,
itemHeight: 120,
containerHeight: height,
overscan: 5
});

return (
<div ref={outerRef} style={{ height }}>
<div ref={innerRef}>
{visibleItems.map(({ item, index }) => (
<TaskCard key={item.id} task={item} index={index} />
))}
</div>
</div>
);
};



4. Real-time Collaboration Complexity


Implementing live updates without conflicts required careful state management:

Optimistic Updates with Rollback:


const useOptimisticUpdates = () => {
const [pendingUpdates, setPendingUpdates] = useState([]);

const optimisticUpdate = async (updateFn, apiCall) => {
const rollbackData = getCurrentState();
const updateId = generateId();

try {
// Apply optimistic update
updateFn();
setPendingUpdates(prev => [...prev, { id: updateId, rollbackData }]);

// Sync with server
await apiCall();

// Remove from pending on success
setPendingUpdates(prev => prev.filter(u => u.id !== updateId));
} catch (error) {
// Rollback on failure
rollbackToState(rollbackData);
setPendingUpdates(prev => prev.filter(u => u.id !== updateId));
}
};
};



5. User Testing Insights


Testing with actual remote teams revealed surprising UX gaps:

  • Color Blindness: 8% of users couldn't distinguish priority colors - added icon indicators
  • Cognitive Load: Too many options overwhelmed new users - introduced progressive disclosure
  • Notification Fatigue: Real-time updates became distracting - added smart notification grouping

Smart Notification System:


const useSmartNotifications = () => {
const [notifications, setNotifications] = useState([]);

const addNotification = (notification) => {
// Group similar notifications
const similar = notifications.find(n =>
n.type === notification.type &&
n.taskId === notification.taskId
);

if (similar) {
// Update existing notification
updateNotification(similar.id, {
count: (similar.count || 1) + 1,
timestamp: Date.now()
});
} else {
// Add new notification
setNotifications(prev => [...prev, notification]);
}
};
};



Conclusion


Building OfficeTeamBoard taught me that modern web applications require more than just feature completeness - they need thoughtful UX design, performance optimization, and inclusive accessibility. The challenge pushed me to think beyond traditional desktop experiences and consider the full spectrum of user needs and device capabilities.

The live demo showcases how technical excellence and user-centered design can create tools that genuinely improve team productivity. Every interaction, from the satisfying drag animations to the intelligent notification system, contributes to an experience that feels both powerful and approachable.

Tech Stack Summary:

  • Frontend: React 18, TypeScript, Tailwind CSS
  • State: Zustand with persistence
  • Animations: Framer Motion
  • Build: Vite with custom plugins
  • Deployment: Vercel with edge functions
  • Testing: Vitest + React Testing Library

This is a submission for the

Пожалуйста Авторизируйтесь или Зарегистрируйтесь для просмотра скрытого текста.



What I Built


OfficeTeamBoard is a modern, collaborative Kanban board designed specifically for remote teams. It combines intuitive task management with real-time collaboration features, offering priority-based sorting, customizable workflows, and a mobile-first responsive design.

Key Features:

  • Smart Priority System: Color-coded priority levels with automatic sorting
  • Real-time Collaboration: Live comments and task updates with WebSocket integration
  • Customizable Columns: Drag-and-drop column reordering and custom status creation
  • Advanced Search & Filtering: Full-text search with regex support and multi-criteria filters
  • Accessibility First: Full keyboard navigation and screen reader support
  • Offline Capability: Local storage persistence with sync recovery
  • Team Analytics: Sprint velocity tracking and burndown charts
Demo


🚀 Live Demo:

Пожалуйста Авторизируйтесь или Зарегистрируйтесь для просмотра скрытого текста.




Пожалуйста Авторизируйтесь или Зарегистрируйтесь для просмотра скрытого текста.


Main dashboard showing multi-column Kanban view with priority indicators


Пожалуйста Авторизируйтесь или Зарегистрируйтесь для просмотра скрытого текста.


Task detail modal with comment system and priority assignment


Пожалуйста Авторизируйтесь или Зарегистрируйтесь для просмотра скрытого текста.


Mobile-optimized interface with touch-friendly interactions

How I Built It

Tech Stack & Architecture


// Core Dependencies
{
"react": "^18.2.0",
"typescript": "^5.0.0",
"tailwindcss": "^3.3.0",
"zustand": "^4.3.0",
"react-beautiful-dnd": "^13.1.1",
"framer-motion": "^10.12.0",
"react-hook-form": "^7.45.0"
}



Key Technical Decisions


State Management with Zustand:


const useTaskStore = create((set, get) => ({
tasks: [],
columns: defaultColumns,
filters: {},

updateTask: (taskId, updates) => set((state) => ({
tasks: state.tasks.map(task =>
task.id === taskId ? { ...task, ...updates } : task
)
})),

// Optimistic updates for real-time feel
moveTask: (taskId, destinationColumn) => {
const state = get();
// Immediate UI update
set(moveTaskOptimistic(state, taskId, destinationColumn));
// Background sync
syncTaskMove(taskId, destinationColumn);
}
}));




Custom Drag & Drop Implementation:
I chose react-beautiful-dnd for its accessibility features but enhanced it with touch support:


const TouchDragHandler = ({ children, dragHandleProps }) => {
const handleTouchStart = (e) => {
// Prevent default touch behaviors
e.preventDefault();
// Custom touch tracking for mobile
initTouchDrag(e.touches[0]);
};

return (
<div
{...dragHandleProps}
onTouchStart={handleTouchStart}
onTouchMove={handleTouchMove}
onTouchEnd={handleTouchEnd}
>
{children}
</div>
);
};




Performance Optimizations:

  • Virtualized rendering for large task lists using react-window
  • Memoized task components with React.memo
  • Debounced search with useCallback optimization
  • Lazy loading of task comments and attachments
UX Design Philosophy


Information Hierarchy:
I implemented a clear visual hierarchy using Tailwind's spacing system:

  • Priority indicators use consistent color coding (red=urgent, orange=high, blue=medium, gray=low)
  • Card shadows increase with priority level for subconscious recognition
  • Typography scales create natural reading patterns

Micro-interactions:
Every interaction provides immediate feedback:


.task-card {
@apply transform transition-all duration-200 hover:scale-105 hover:shadow-lg;
}

.task-card[data-priority="urgent"] {
@apply border-l-4 border-red-500 shadow-red-100;
}



Lessons Learned

1. Accessibility in Drag & Drop Interfaces


Initially, screen readers couldn't navigate the Kanban board effectively. I learned to implement:

Keyboard Navigation:


const useKeyboardDrag = () => {
const handleKeyDown = (e, taskId) => {
if (e.key === 'Enter' || e.key === ' ') {
toggleDragMode(taskId);
}
if (e.key === 'ArrowRight' && dragMode) {
moveToNextColumn(taskId);
}
};

return { handleKeyDown, dragMode };
};




ARIA Labels for Context:


<div
role="button"
aria-label={`Task: ${task.title}. Priority: ${task.priority}. In ${column.name} column. Press Enter to start moving.`}
aria-describedby={`task-${task.id}-details`}
>



2. Mobile-First Drag & Drop Challenges


Desktop drag & drop doesn't translate directly to touch devices. Key learnings:

  • Touch Events vs Pointer Events: Pointer events provide better cross-device compatibility
  • Visual Feedback: Mobile users need stronger visual cues during drag operations
  • Hit Targets: Minimum 44px touch targets for accessibility compliance
3. Performance with Large Datasets


Real teams can have hundreds of tasks. I learned to optimize for scale:

Virtual Scrolling Implementation:


const VirtualTaskList = ({ tasks, height = 400 }) => {
const { scrollElementRef, outerRef, innerRef, visibleItems } =
useVirtualScroll({
items: tasks,
itemHeight: 120,
containerHeight: height,
overscan: 5
});

return (
<div ref={outerRef} style={{ height }}>
<div ref={innerRef}>
{visibleItems.map(({ item, index }) => (
<TaskCard key={item.id} task={item} index={index} />
))}
</div>
</div>
);
};



4. Real-time Collaboration Complexity


Implementing live updates without conflicts required careful state management:

Optimistic Updates with Rollback:


const useOptimisticUpdates = () => {
const [pendingUpdates, setPendingUpdates] = useState([]);

const optimisticUpdate = async (updateFn, apiCall) => {
const rollbackData = getCurrentState();
const updateId = generateId();

try {
// Apply optimistic update
updateFn();
setPendingUpdates(prev => [...prev, { id: updateId, rollbackData }]);

// Sync with server
await apiCall();

// Remove from pending on success
setPendingUpdates(prev => prev.filter(u => u.id !== updateId));
} catch (error) {
// Rollback on failure
rollbackToState(rollbackData);
setPendingUpdates(prev => prev.filter(u => u.id !== updateId));
}
};
};



5. User Testing Insights


Testing with actual remote teams revealed surprising UX gaps:

  • Color Blindness: 8% of users couldn't distinguish priority colors - added icon indicators
  • Cognitive Load: Too many options overwhelmed new users - introduced progressive disclosure
  • Notification Fatigue: Real-time updates became distracting - added smart notification grouping
Conclusion


Building OfficeTeamBoard taught me that modern web applications require more than just feature completeness - they need thoughtful UX design, performance optimization, and inclusive accessibility. The challenge pushed me to think beyond traditional desktop experiences and consider the full spectrum of user needs and device capabilities.

The live demo showcases how technical excellence and user-centered design can create tools that genuinely improve team productivity. Every interaction, from the satisfying drag animations to the intelligent notification system, contributes to an experience that feels both powerful and approachable.

Tech Stack Summary:

  • Frontend: React 18, TypeScript, Tailwind CSS
  • State: Zustand with persistence
  • Animations: Framer Motion
  • Build: Vite with custom plugins
  • Deployment: Vercel with edge functions
  • Testing: Vitest + React Testing Library

This is a submission for the

Пожалуйста Авторизируйтесь или Зарегистрируйтесь для просмотра скрытого текста.



What I Built


OfficeTeamBoard is a modern, collaborative Kanban board designed specifically for remote teams. It combines intuitive task management with real-time collaboration features, offering priority-based sorting, customizable workflows, and a mobile-first responsive design.

Key Features:

  • Smart Priority System: Color-coded priority levels with automatic sorting
  • Real-time Collaboration: Live comments and task updates with WebSocket integration
  • Customizable Columns: Drag-and-drop column reordering and custom status creation
  • Advanced Search & Filtering: Full-text search with regex support and multi-criteria filters
  • Accessibility First: Full keyboard navigation and screen reader support
  • Offline Capability: Local storage persistence with sync recovery
  • Team Analytics: Sprint velocity tracking and burndown charts
Demo


🚀 Live Demo:

Пожалуйста Авторизируйтесь или Зарегистрируйтесь для просмотра скрытого текста.




Пожалуйста Авторизируйтесь или Зарегистрируйтесь для просмотра скрытого текста.


Main dashboard showing multi-column Kanban view with priority indicators


Пожалуйста Авторизируйтесь или Зарегистрируйтесь для просмотра скрытого текста.


Task detail modal with comment system and priority assignment


Пожалуйста Авторизируйтесь или Зарегистрируйтесь для просмотра скрытого текста.


Mobile-optimized interface with touch-friendly interactions

How I Built It

Tech Stack & Architecture


// Core Dependencies
{
"react": "^18.2.0",
"typescript": "^5.0.0",
"tailwindcss": "^3.3.0",
"zustand": "^4.3.0",
"react-beautiful-dnd": "^13.1.1",
"framer-motion": "^10.12.0",
"react-hook-form": "^7.45.0"
}



Key Technical Decisions


State Management with Zustand:


const useTaskStore = create((set, get) => ({
tasks: [],
columns: defaultColumns,
filters: {},

updateTask: (taskId, updates) => set((state) => ({
tasks: state.tasks.map(task =>
task.id === taskId ? { ...task, ...updates } : task
)
})),

// Optimistic updates for real-time feel
moveTask: (taskId, destinationColumn) => {
const state = get();
// Immediate UI update
set(moveTaskOptimistic(state, taskId, destinationColumn));
// Background sync
syncTaskMove(taskId, destinationColumn);
}
}));




Custom Drag & Drop Implementation:
I chose react-beautiful-dnd for its accessibility features but enhanced it with touch support:


const TouchDragHandler = ({ children, dragHandleProps }) => {
const handleTouchStart = (e) => {
// Prevent default touch behaviors
e.preventDefault();
// Custom touch tracking for mobile
initTouchDrag(e.touches[0]);
};

return (
<div
{...dragHandleProps}
onTouchStart={handleTouchStart}
onTouchMove={handleTouchMove}
onTouchEnd={handleTouchEnd}
>
{children}
</div>
);
};




Performance Optimizations:

  • Virtualized rendering for large task lists using react-window
  • Memoized task components with React.memo
  • Debounced search with useCallback optimization
  • Lazy loading of task comments and attachments
UX Design Philosophy


Information Hierarchy:
I implemented a clear visual hierarchy using Tailwind's spacing system:

  • Priority indicators use consistent color coding (red=urgent, orange=high, blue=medium, gray=low)
  • Card shadows increase with priority level for subconscious recognition
  • Typography scales create natural reading patterns

Micro-interactions:
Every interaction provides immediate feedback:


.task-card {
@apply transform transition-all duration-200 hover:scale-105 hover:shadow-lg;
}

.task-card[data-priority="urgent"] {
@apply border-l-4 border-red-500 shadow-red-100;
}



Lessons Learned

1. Accessibility in Drag & Drop Interfaces


Initially, screen readers couldn't navigate the Kanban board effectively. I learned to implement:

Keyboard Navigation:


const useKeyboardDrag = () => {
const handleKeyDown = (e, taskId) => {
if (e.key === 'Enter' || e.key === ' ') {
toggleDragMode(taskId);
}
if (e.key === 'ArrowRight' && dragMode) {
moveToNextColumn(taskId);
}
};

return { handleKeyDown, dragMode };
};




ARIA Labels for Context:


<div
role="button"
aria-label={`Task: ${task.title}. Priority: ${task.priority}. In ${column.name} column. Press Enter to start moving.`}
aria-describedby={`task-${task.id}-details`}
>



2. Mobile-First Drag & Drop Challenges


Desktop drag & drop doesn't translate directly to touch devices. Key learnings:

  • Touch Events vs Pointer Events: Pointer events provide better cross-device compatibility
  • Visual Feedback: Mobile users need stronger visual cues during drag operations
  • Hit Targets: Minimum 44px touch targets for accessibility compliance
3. Performance with Large Datasets


Real teams can have hundreds of tasks. I learned to optimize for scale:

Virtual Scrolling Implementation:


const VirtualTaskList = ({ tasks, height = 400 }) => {
const { scrollElementRef, outerRef, innerRef, visibleItems } =
useVirtualScroll({
items: tasks,
itemHeight: 120,
containerHeight: height,
overscan: 5
});

return (
<div ref={outerRef} style={{ height }}>
<div ref={innerRef}>
{visibleItems.map(({ item, index }) => (
<TaskCard key={item.id} task={item} index={index} />
))}
</div>
</div>
);
};



4. Real-time Collaboration Complexity


Implementing live updates without conflicts required careful state management:

Optimistic Updates with Rollback:


const useOptimisticUpdates = () => {
const [pendingUpdates, setPendingUpdates] = useState([]);

const optimisticUpdate = async (updateFn, apiCall) => {
const rollbackData = getCurrentState();
const updateId = generateId();

try {
// Apply optimistic update
updateFn();
setPendingUpdates(prev => [...prev, { id: updateId, rollbackData }]);

// Sync with server
await apiCall();

// Remove from pending on success
setPendingUpdates(prev => prev.filter(u => u.id !== updateId));
} catch (error) {
// Rollback on failure
rollbackToState(rollbackData);
setPendingUpdates(prev => prev.filter(u => u.id !== updateId));
}
};
};



5. User Testing Insights


Testing with actual remote teams revealed surprising UX gaps:

  • Color Blindness: 8% of users couldn't distinguish priority colors - added icon indicators
  • Cognitive Load: Too many options overwhelmed new users - introduced progressive disclosure
  • Notification Fatigue: Real-time updates became distracting - added smart notification grouping
Conclusion


Building OfficeTeamBoard taught me that modern web applications require more than just feature completeness - they need thoughtful UX design, performance optimization, and inclusive accessibility. The challenge pushed me to think beyond traditional desktop experiences and consider the full spectrum of user needs and device capabilities.

The live demo showcases how technical excellence and user-centered design can create tools that genuinely improve team productivity. Every interaction, from the satisfying drag animations to the intelligent notification system, contributes to an experience that feels both powerful and approachable.

Tech Stack Summary:

  • Frontend: React 18, TypeScript, Tailwind CSS
  • State: Zustand with persistence
  • Animations: Framer Motion
  • Build: Vite with custom plugins
  • Deployment: Vercel with edge functions
  • Testing: Vitest + React Testing Library

Want to contribute or explore the code? The project is open source on GitHub:

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Want to contribute or explore the code? The project is open source on GitHub:

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Want to contribute or explore the code? The project is open source on GitHub:

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Want to contribute or explore the code? The project is open source on GitHub:

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This is a submission for the

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What I Built


OfficeTeamBoard is a collaborative task manager & board made for remote teams with priority sorting, live comments, customizable columns, shareable task links, +and huge visual focus.

Demo


Live Demo:

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(screenshots shown from this instance)

How I Built It


React + Tailwind CSS (drag-and-drop, re-animated columns, local persistence with Zustand, mobile-first). - Open source with custom SVG icons.

Lessons Learned

  • How keyboard navigation improves Kanban accessibility
  • Refining drag&drop to work across mobile and desktop (touch handlers and pointer events)
  • Importance of task filter/search UX on large boards
  • Balancing visual energy with professional minimalism , real user test feedback!



Источник:

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