Blog
Project notes and guides to technology decisions, costs, and risks in business operations.
125 articles found
For Technical Teams
Designing HMI Dashboards Operators Actually Trust
Gray screens, disciplined alarms, and a cause-and-effect matrix — what separates industrial HMI dashboards operators rely on from decoration.
For Business
Seven Warning Signs in a Software Project
Seven signs clients can check when a software project drifts, with practical steps for clarifying progress, scope, access, and testing.
For Technical Teams
Controlling LLM Costs: Route by Task, Cap by Day
Route cheap tasks to cheap models, cap spend by day, and set a deadline per turn: practical LLM cost control that scales without surprises.
For Technical Teams
Smart Lock Architecture for Boarding Houses and Hotels
Architecture decisions behind a smart lock platform serving BLE-only boarding houses and gateway-connected, booking-linked hotels.
For Business
Choosing a Product License: MIT, Apache, AGPL, or Closed
How to license the software you ship: closed for client work, MIT for adoption, Apache-2.0 for patent posture, AGPL when you sell the product itself.
For Technical Teams
Payment Webhooks: Prevent Missing and Duplicate Data
How to verify signatures, respond fast, dedupe by event id, and reconcile so payment webhooks stop silently dropping money.
For Business
Smart Locks for Boarding Houses: Choosing Access
Smart door access for boarding houses: offline-first locks, PIN and card credentials, the tenant lifecycle, and how to decide on a gateway.
For Technical Teams
IoT SPOFs: Gateways, Brokers and SIM Cards
Broker, gateway, uplink, NTP, and OTA server are five separate single points of failure hiding behind one healthy IoT dashboard.
For Technical Teams
Self-Hosted Supabase: What You Have to Operate
Self-hosted Supabase puts backups, upgrades, monitoring and access-key security in your team’s hands.
For Business
Staging: Test Software Before Customers Use It
What a staging environment must mirror, what it can skip, and the failure story that shows what happens without one.
For Business
Panic Buttons: Designing an Emergency Alert Fleet
Scaling panic buttons to roughly 100 locations — WiFi with GSM fallback, heartbeat liveness, escalation chains, test mode, and the audit trail.
For Business
Dual Licensing: AGPL and Commercial Terms
Releasing a product as AGPL plus a paid commercial license — the mechanics, the NOTICE discipline, and what commercial buyers actually ask.