Blog
Practical insights and ideas from the journey so far
How to build your own STUN/TURN server on AWS
WebRTC often can't connect two devices directly if they're behind strict NATs. You'll need a STUN server (stun:stun.l.google.com:19302 for free) and ideally a TURN server as fallback. Free TURN options are limited; for production, Twilio's NTS, Metered.ca or self hosted "coturn" is ideal.
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Can a DIY GSM module replace a commercial SMS/OTP service
Can a Rs 3,000 Arduino and SIM800L gadget really replace a commercial SMS service? I built a working GSM OTP sender - wiring, firmware, and a web dashboard then compared the numbers on cost, carrier sending limits, and local vs international providers. The results are intriguing.
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Why End-to-End Encryption Is Replacing Trust in Corporations
As trust in centralized platforms declines, end-to-end encryption is emerging as the new standard for secure communication and data ownership.
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Designing Data Intensive Applications - Chapter # 1
First chapter Reliable, Scalable, and Maintainable Applications focuses on key principles to design systems and applications.
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