Puzzle / Brain training2024
Own product — verifiable
Sudoku Master
Offline-first sudoku on Android — guided hints that teach the logic instead of spoiling it.
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[02]Work
The ledger of
things we can prove
All important projects in one place: live apps, flagship blueprints, client archive and the Concept Lab. Every entry separates what we built from what we can verify. Store links go to Google Play; client cases show only what owners allowed us to show. No mockups passed off as shipped product.
Own products — live & maintained
- Sudoku Master
Finance / Productivity2025Money AI — Expense TrackerOwn product — verifiableMoney AI — Expense Tracker
Expense tracking with XP, levels and streaks — privacy-first: local data, optional user-owned Drive sync.
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Business tools2026Invoice MakerOwn product — verifiableInvoice Maker
Professional invoicing for freelancers and small shops — six PDF templates, 140+ currencies, works fully offline.
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Platform / In-house2026This website — the Chimbuk platformOwn product — verifiableThis website — the Chimbuk platform
This site: a hand-built Next.js 16 + Tailwind design system with a Firebase CMS pipeline planned for the backend phase.
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Flagship blueprints — built for us, deployable for you
AI & Automation2026AI Automation CopilotClient case — archived evidenceAI Automation Copilot
A production AI workspace for small businesses — chat-driven operations, document-aware answers, and automations that act only after a human approves. Our flagship blueprint: built for ourselves, deployable for you.
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AI & Automation2026AI Chatbot SuiteClient case — archived evidenceAI Chatbot Suite
The customer-facing half of our AI practice: a website + WhatsApp + Messenger bot with one shared brain — knowledge with citations, confidence gates, human handover, and an unanswered-question queue that keeps getting smarter. Flagship blueprint: running our own front desk, deployable for yours.
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Business tools2026ShikkhaOS — School Management SystemClient case — archived evidenceShikkhaOS — School Management System
A school ERP shaped for Bangladeshi institutions: register-grade attendance that messages parents automatically, a fee lifecycle wired to bKash and Nagad, board-style mark sheets that become printed report cards, and an office dashboard that runs on any connection. Flagship blueprint: production-grade and deployable, not yet a client case.
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Education Platform2026Pathshala — Online Learning PlatformClient case — archived evidencePathshala — Online Learning Platform
A full LMS built for the way Bangladesh actually learns: a creator studio with module-by-module publishing, a low-data video player with Bangla subtitles, live classes that archive into lessons, quiz-driven progress, verifiable certificates, and a fee flow that settles in bKash. Flagship blueprint: production-grade, deployable for academies, coaching centers and independent instructors.
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E-commerce2026Jhotpot — E-commerce SuiteClient case — archived evidenceJhotpot — E-commerce Suite
A store platform designed for how Bangladesh actually shops: cash-on-delivery treated as a first-class citizen with fake-order defenses, bKash and Nagad prepay incentives that save real money, courier integrations with COD settlement reconciliation, and a campaign engine that plans Eid sales like software instead of prayers. Flagship blueprint: production-grade and deployable — the Shopify subscription ends here.
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Health & Care2026Sastho — Doctor Appointment & Health CompanionClient case — archived evidenceSastho — Doctor Appointment & Health Companion
A chamber-first booking and records system for real Bangladeshi practice: token queues that end waiting-room chaos, advance bKash deposits that make no-shows cost something, typed prescriptions with a duplicate-therapy warning, and a patient record vault that follows the person from chamber to chamber. Flagship blueprint: built production-grade for doctors we shadowed — the app is the instrument, the doctor stays the clinician.
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Travel & Booking2026PoraShore — Travel Booking PlatformClient case — archived evidencePoraShore — Travel Booking Platform
A tour-booking platform engineered for Bangladeshi travel reality: packages with live seat counts, a 30% bKash advance that kills ghost bookings, itineraries written like humans read them, and an operator back-office where manifests, partner settlements and weather cancellations are normal rows, not WhatsApp panic. Flagship blueprint: our own travel desk's engine, deployable for agencies — and the shared backbone for this studio's travel brand.
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Booking & Services2026Dokti — Booking & Reservations PlatformClient case — archived evidenceDokti — Booking & Reservations Platform
The appointment engine for chair-based and table-based businesses — salons, clinics' private wings, studios, restaurants, rentals: staff-level availability that respects buffers, reply-to-confirm reminders that kill no-shows at the root, walk-in queues with scannable tokens, and deposits over bKash that make a 4:00 slot feel real. Flagship blueprint: same interface proven on MacBook and iPhone, one design system, web on Next.js, mobile as a Flutter companion — deployable in 3–6 weeks.
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Food & Retail2026Bhuk — Ordering, Kitchen & POSClient case — archived evidenceBhuk — Ordering, Kitchen & POS
One restaurant system instead of three subscriptions: the customer's menu with live prep times, the kitchen's ticket board with honest timers, the cashier's tap-tile POS with splits and bKash — and a dispatch view that batches riders by the same order states. Every bill's arithmetic reconciles on every screen, because in a kitchen a wrong number is a wrong plate. Flagship blueprint: runs the studio's own supper-club nights; restaurant deployments in 4–7 weeks.
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Logistics2026Parbon — Delivery & Logistics PlatformClient case — archived evidenceParbon — Delivery & Logistics Platform
Courier operations software built around the two places money actually leaks: the manifest a rider carries and the cash that comes back from it. Consignment states with evidence, run timelines that show delay as it forms, attempts-per-delivery metrics that end the same-customer folklore, and evening settlement where difference-zero is a gate, not a hope. Flagship blueprint: hardened on this studio's own parcel traffic between offices — deployable for district couriers and in-house fleets in 6–10 weeks.
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Real Estate2026BariKhoj — Property Marketplace & Rent LedgerClient case — archived evidenceBariKhoj — Property Marketplace & Rent Ledger
A rental marketplace built on the one thing portals never verify: whether the listing still exists and what the advance really is. Photo-expiry verification on every listing, a rent ledger the tenant can read, and viewing schedules that respect travel time. Flagship blueprint: the full stack — discovery, trust and settlement — designed to launch with two buildings before it launches with two thousand.
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Client work — cases & archive
Two client cases are carried in the archive but unpublished: full case studies (screens, metrics, client quotes) ship only after written owner permission, with NDA-sensitive numbers removed. The rebuilds we shipped in 2025 are documented internally and available under NDA.
Plus 12 Concept Lab builds
— phone, tablet & web, rendered live
Ride-sharing, neobanking, telehealth, live commerce… flagship-grade concepts we designed and engineered for no one but ourselves. 89+ interactive screens, zero images — proof of what your product could look like on every device, built the Flutter way.
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