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Case Study

How we actually build the systems we ship.

Not illustrative mockups — these are engineering write-ups verified against the running codebase: real modules, real data flows, real trade-offs. What's live is labeled live. What isn't built yet, we don't pretend it is.

Hyperlocal Safety & Commerce PlatformVerified build

NeyborHuud

Engineering an AI-powered community operating system for the Nigerian neighborhood — safety, commerce, and trust as native primitives.

Next.jsMongoDBRedis / BullMQCognitive AI
35
Backend modules
0–10
Threat scale
0/30/60/90s
SOS cadence
Geospatial Threat Detection EngineVerified build

Sentinel AI

Designing a geospatial community intelligence engine — administrative-boundary matching, temporal clustering, and hybrid AI threat scoring, without a spatial database.

Haversine matchingMongoDBCognitive AISocket.IO
0–10
Threat scale
30 min
Cluster window
4
Cascade stages
Custodial Staking & Settlement PlatformVerified build

Novunt

Building a secure fintech backend — atomic deposit claims, layered idempotency, an immutable double-entry ledger, and threshold-gated withdrawals.

Node.js / ExpressMongoDBNOWPaymentsSocket.IOnode-cron
3
Idempotency layers
4
Concurrency layers
2-sided
Ledger entries
Enterprise Safety & Compliance PlatformVerified build

Seth HSE

Engineering a high-risk enterprise safety platform — geofenced anti-spoof compliance, dynamic safety protocols, and a 15-module strict modular monolith.

Node.js / ExpressPostgreSQL / RLSFlutterNext.jsRedis
15
Bounded modules
NDPR + GDPR
Privacy posture
0 ms
Cross-module code import
Decentralized Payroll & Asset StreamingVerified build

Token Streaming Protocol

Engineering a real-time continuous asset streaming protocol on Bitcoin L2 — Clarity 3 smart contracts, pause/resume state machines, and cryptographic ECDSA authorization.

Clarity 3Stacks BlockchainReactTypeScriptClarinet
Clarity 3
Decidable contracts
100%
Test coverage
Real-time
Balance calculation
Automated Market Maker & DEXVerified build

AMM Decentralized Exchange

Building a constant-product Automated Market Maker (x*y=k) on Bitcoin L2 — permissionless SIP-010 liquidity pools, dynamic swap routing, and LP token yield distribution.

Clarity 3SIP-010Next.js 15Stacks ConnectTypeScript
x · y = k
Invariant
0.3%
Protocol LP fee
SIP-010
Token standard
Real-Time Blockchain IntelligenceVerified build

Stacks Blockchain Explorer

Designing a high-throughput Stacks network explorer — live transaction indexing, smart contract execution decoding, Leather/Xverse wallet integration, and Hiro API.

Next.js 16React 19TypeScriptHiro API@stacks/connect
5
Decoded tx types
Multi
Wallet support
Next.js 16
App Router
Career Decision EngineVerified build

WEBMUSE Career Assessment

Building a decision engine for technology career guidance — recovered from a real GitHub source, expanded into a two-axis scoring model across 26 tech roles.

Next.jsTypeScriptFramer MotionWeighted scoring engine
26
Tech paths
4
Scoring axes
0
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