https://sudonull.com/go-tun-udp-relay-yaml-config-and-code
Implement a network relay on Go with TUN/TAP and UDP tunnels. YAML config, protocol with MD5+timestamp, iperf3 benchmarks 925 Mbit/s. Code and examples for middle/senior dev.
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In this project
https://sudonull.com/webrtc-datachannel-files-without-buffer-errors
Analysis of file transfer issues via WebRTC: backpressure, TURN-relay, overlapped I/O. Code examples for middle/senior dev. Implement reliable P2P file exchange without truncations.
https://sudonull.com/telegram-lead-bot-on-python-free-crm
Create a mini-CRM in Telegram with a lead bot on Python and Yandex Cloud Functions. Qualification, topics, relay for 0 ₽. Instructions with code for developers.
https://sudonull.com/arduino-split-system-control-for-7-c
Create a refrigeration room on Arduino: split system installation, vacuuming, controller with relay and IR. Step by step for developers. Instructions with code.
https://sudonull.com/postfix-dkim-docker-send-only-server-setup
Step-by-step guide to deploying Postfix with DKIM in Docker on Ubuntu. Authorization, TLS, SPF. Deliverability testing. For middle/senior devs. Start deploying your own mailer without relay services.
From other projects
https://ymaho.com/polkadot-explained-how-cross-chain-interoperability-works
Understand Polkadot's relay chain, parachains, and DOT token in plain English. Learn why blockchain interoperability matters to you.
https://ymaho.com/how-to-repay-a-loan-early-profitably-step-by-step-guide-2026
Step-by-step guide: how to repay a loan early with maximum benefit, reduce interest and get insurance back. Tips for 2026 — start saving now.
https://lrivo.com/ipswich-town-s-promotion-push-clarke-on-squad-duty
Jack Clarke says Ipswich Town must rely on their own squad during a tough run-in. Get insights on their Championship promotion chances.
https://ymaho.com/ipo-dien-may-xanh-590-million-debt-repayment-and-risks
Vietnam's largest electronics chain Dien May Xanh conducts IPO of $590 million to repay debts. Analysis of valuation, beneficiaries, and forecast for investors. Read details.
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