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Systems Atlas

Every system I have designed and built, grouped by discipline.

Collection

40 systems

  1. Media· Case studyMulti-DRM protection and entitlement-gated playbackEncrypt once, license per viewer: paid creator video protected across every major DRM system, where the licence decision is a business rule about who has paid. Live in production.Circo · Architect
  2. Media· Case studyAdaptive streaming and the transcoding ladderEvery upload becomes a ladder of renditions, packaged once for HLS and DASH and served from the edge, so every phone gets the best stream its connection can hold. Live in production.Circo · Architect
  3. Media· Case studyVideo moderation that fails closedA media admission pipeline that probes cheaply, gates on spec, classifies with a model, and always returns one predictable result, rejecting what it cannot inspect.Circo · Architect
  4. MediaOne upload, many episodesA long upload can be cut into time-based episodes and announced to the platform as a series, without the creator editing anything.Circo · Hands-on engineer
  5. MediaScheduled live from recorded videoA design for live-feeling premieres built on the existing video pipeline: a manifest that only reveals what has 'aired' so far.Circo · Architect
  6. Intelligence· Case studyCirco Sparks: one event model for engagementViews, likes, shares, comments and recircos turned into a single event stream, where every action carries value for both the fan and the creator.Circo · Architect
  7. Intelligence· Case studyPersonalised feeds on a recommendation engineEvery interaction batched into a recommendation engine, with visibility rules and session continuation so the feed stays safe and attributable.Circo · Architect
  8. Intelligence· Case studyAudience affinity: what should I make next?Recommendation turned around for creators: from your audience, find the topics they watch elsewhere that you haven't made, with privacy floors in code.Circo · Architect
  9. IntelligenceCreator audience demographicsAggregated geographic and demographic views of a creator's audience, modelled in the analytics warehouse with the same privacy caution as affinity.Circo · Hands-on engineer
  10. Fintech· Case studyPayments, wallets, gifting and payoutsA payment service that keeps money, virtual gifts, subscriptions and payouts apart, and wires payment straight into who may watch.Circo · Architect
  11. Developer Infrastructure· Case studyDino: the API quality and context layer for AI agentsAn AI-native API intelligence and quality assurance platform that helps developers and coding agents understand, test and safely modify APIs.Dino · Founder
  12. Fintech· Case studyWallet-as-a-service for African fintechsOne API that gives any fintech wallets, stablecoins, on/off ramps and KYC for its customers, normalising a patchwork of regional providers behind a single contract. 20,000+ requests a day.Yuki · Founder
  13. Developer Infrastructure· Case studyAPI discoveryDino finds every operation an API exposes, REST and GraphQL, with its schemas, authentication requirements, dependencies and relationships, and keeps that inventory current.Dino · Founder
  14. Fintech· Case studyCustody: from encrypted keys to MPC and smart accountsHow Yuki's wallet custody evolved: envelope-encrypted keys to ship fast, then a composable V2 built around threshold signing and on-chain smart-contract wallets.Yuki · Founder
  15. Developer Infrastructure· Case studyContext, intelligence and retrievalA continuously evolving knowledge base of each API's structure, behaviour and history, served to developers and agents by a retrieval engine built on knowledge graphs, semantic search and contextual ranking.Dino · Founder
  16. Fintech· Case studyA settlement network for fiat rampsLarge ramp orders broadcast to many liquidity providers, split into fillable pieces and settled through escrow, so African Web3 businesses can move volumes no single provider can carry.Yuki · Founder
  17. Developer InfrastructureAPI understandingDino interprets API structures, identifies relationships, reconstructs workflows, connects technical operations to their business meaning, and writes the documentation teams wish they had.Dino · Founder
  18. Developer InfrastructureOne QA board across every teamA scheduled reconcile that pulls every issue awaiting QA from each team's board onto one central board, without ever overwriting a tester's verdict.Circo · Engineering lead
  19. FintechStablecoin swaps and DEX pricingLocal-currency stablecoin swaps inside a mobile wallet, and an event-driven pricing library that quotes across dozens of exchanges from memory instead of hammering nodes.Yuki · Founder
  20. Leadership· Case studyLeading an AI-native engineering teamBuilding and leading a 16-person engineering team across backend, web, mobile, ML and data, with one shared operating model for coding agents.Circo · Engineering lead
  21. Fintech· Case studyA goal-based crypto robo-advisorRisk profiling, model portfolios and recurring local-currency investing for first-time investors: ComiBlock's core product, grown to US$400,000 in assets under management.ComiBlock · Founder
  22. Developer Infrastructure· Case studyBusiness assuranceDino understands the business rules a system must keep, analyses every change for business impact, and verifies the invariants and multi-step workflows that matter most.Dino · Founder
  23. LeadershipGoverning coding agents in a polyglot codebaseOne instruction set for agents across TypeScript, Java, Go, Python, Swift and Kotlin: shared rules, local boundaries, human review.Circo · Engineering lead
  24. FintechAsset context: the contextualiserEvery coin in a portfolio came with live market data, a plain-language profile and curated education, so investors understood what they owned rather than just watching a number move.ComiBlock · Founder
  25. Developer InfrastructureAutonomous API testingDino generates and runs API tests across input validation, fuzzing, authentication, authorisation, rate limiting, response correctness and error handling, under strict budgets.Dino · Founder
  26. LeadershipThe Circo platformThe creator-first video platform the media, intelligence and payments systems on this site belong to: native apps, web, studios and an event-driven backend.Circo · Engineering lead
  27. Developer Infrastructure· Case studyDeterministic verification and verifiable evidenceDino validates API behaviour against defined requirements and produces reproducible results backed by execution evidence, sealed into records anyone can verify.Dino · Founder
  28. FintechIdentity, liveness and compliant onboardingBiometric liveness and ID checks that work on entry-level Android phones, feeding KYC and AML gates for both the robo-advisor and the wallet platform.ComiBlock · Founder
  29. Leadership· Case studyHow I build with coding agentsDino is built with coding agents inside rules I set: machine-enforced constraints, failing tests first, honest failure as a non-negotiable, and checks only a human can weaken.Dino · Founder
  30. Developer InfrastructureQuality gates and policy enforcementTeams define what quality means for their APIs, and Dino enforces it, stopping changes that fail verification before they move through the pipeline.Dino · Founder
  31. Fintech· Case studyCross-border tuition payments and SFX PointsMulti-currency tuition flows over bank rails with compliance built in, plus a points economy that brings students back each term. Now processing US$10M+ in payments.SFX · Product lead
  32. Developer InfrastructureChange intelligence and continuous monitoringDino detects schema changes, breaking changes, deprecated operations and behavioural drift, traces their downstream effects, and keeps watching for regressions.Dino · Founder
  33. Leadership· Case studyProject Zeus: delivery intelligence for an engineering orgOne live view across every engineering board at Circo: what is being built, by whom, how healthy delivery is, where it is stuck and how fast the team ships.Circo · Architect
  34. Developer InfrastructureBuilt into the agent: MCP, CLI, skills and assistantDino puts API knowledge, context retrieval, findings and quality checks directly inside coding agents through MCP, with a developer CLI, agent skills and a natural-language API assistant.Dino · Founder
  35. Developer InfrastructureDino Terminal: a native home for coding agentsA native macOS app for running Claude Code in a real terminal, with per-project personas, file preview, a live task panel and a rich agent view, signed and self-updating.Dino · Founder
  36. Developer InfrastructureVerification wherever you buildDino runs in local development, in its managed cloud, in customer-controlled environments, and inside CI/CD and GitHub pull requests.Dino · Founder
  37. Intelligence· Case studyVideoSense: an AI video intelligence engineA pipeline that watches a video the way an editor would: scenes, speech, motion and narrative in; teasers, platform-ready presets, thumbnail crops and monetisation signals out.Circo · Architect
  38. Developer InfrastructureAgent-led onboardingA coding agent onboards an organisation's whole API estate into Dino over MCP, and people make every consequential decision.Dino · Founder
  39. Developer InfrastructureSecret custodyThe credentials Dino uses to test an API never enter chat, logs or Dino's own database.Dino · Founder
  40. Developer InfrastructureSigning in like a real clientDino logs into APIs the way real clients do, across multi-step logins, one-time codes, OAuth2 and multiple roles.Dino · Founder