Tunas Akara

Blog

Project notes and guides to technology decisions, costs, and risks in business operations.

125 articles found

6 min read

For Technical Teams

Database Intact, Files Missing: A Backup Gap

A case study in orphaned blobs: 400 media files referenced by healthy database rows, missing from storage — and why only 45% came back.

object-storagedata-integritybackup
6 min read

For Business

PPE Detection Cameras: What Deployment Needs

Before deploying PPE cameras, test placement, lighting, false alerts and supervisor follow-up at the actual site.

computer-visionppesafety
8 min read

For Technical Teams

API Versioning When Vendors Don't Version Anything

Vendor APIs change without notice. Tolerant readers, contract tests, an anti-corruption layer, and pinning keep integrations alive.

apiintegrationversioning
7 min read

For Business

RAG: AI Answers From Your Business Data

How RAG grounds LLM answers in your own data, why hybrid search beats either method alone, and when RAG is overkill.

ragllmsearch
6 min read

For Technical Teams

Your pg_dump Is Not a Backup Until You've Restored It

A dated dump file is not a backup. Restore testing, object storage in scope, and the integrity checks that make recovery real.

postgresqlbackupdisaster-recovery
8 min read

For Business

Choosing a Tech Stack for an SME System: Boring Wins

Why boring, hirable technology beats the newest framework for an SME system, plus vendor questions to ask.

tech-stacksmehiring
6 min read

For Technical Teams

Reading Legacy Utility Meters With a Camera: ESP32-CAM OCR

Retrofitting analog utility meters with ESP32-CAM OCR — mounting, lighting, confidence thresholds, and the economics versus meter replacement.

iotesp32ocr
8 min read

For Business

Offline-First Apps That Keep Field Teams Working

Field teams must save work without a signal. Test synchronization, conflicting edits and duplicate submissions before rollout.

offline-firstfield-servicesync-architecture
6 min read

For Business

AGPL in Commercial Computer Vision: The Ultralytics Question

Ultralytics YOLO is AGPL-3.0. Three compliant options for closed-source CV products, and the questions to ask any CV vendor.

licensingcomputer-visionagpl
7 min read

For Business

Digitizing Jastip Orders, Payments, and Refunds

Small social-commerce sellers outgrow chat and spreadsheets. The minimum system — order status, payment status — that fixes it.

jastipsocial-commerceorder-management
7 min read

For Business

Managing Android TV Fleets for Signage and IPTV

Provisioning, lockdown, content sync, and heartbeat telemetry for fleets of commodity Android TV boxes running digital signage and hospital IPTV.

androidsignageiptv
6 min read

For Technical Teams

PhotoRec: Limits of File and Folder Recovery

What PhotoRec file carving recovers from a failed NTFS drive, what is permanently lost, and how to triage 1,600 documents that come back without names.

data-recoveryphotorecntfs