Pinggy Blog

Tunnels, networking, self-hosted LLMs, and AI news

Hands-on guides, protocol deep dives, and field notes on tunnels, SSH, reverse proxies, self-hosting, self-hosted LLMs, and AI - from the people building Pinggy.


Long Horizon Tasks with AI Agents: From Research to Working Prototypes

AI Agents AI Tools Automation

Long-horizon agent runs fail for structural reasons, not intelligence reasons. Here is what actually holds a multi-hour agent workflow together: a written success contract, separated discovery and delivery phases, persistent state outside the context window, external test oracles, checkpoints, and hard limits on autonomy.

AI Crawlers Now Cost More CPU Than All Your Real Traffic Combined

AI Crawlers Self-Hosted Open Source

git.kernel.org now spends more CPU rendering pages for AI training scrapers than on every git clone and legitimate visit combined. Here's what the numbers say, why proof-of-work challenges like Anubis are winning and losing at the same time, and what it means for anyone running their own infrastructure.

How to Diagnose Email Deliverability Issues Using DNS Records

DNS Email Deliverability Networking

A practical technical guide to diagnosing email deliverability issues with DNS. Learn how to verify MX, SPF, DKIM, and DMARC records using terminal commands, fix duplicate SPF records, and ensure your emails reach the inbox.

Debugging Real-Time Communication Apps: VoIP, SMS, and Identity Checks

VoIP Troubleshooting Networking

How to debug VoIP calls, SMS delivery, and phone number verification: locate the point of failure, read API responses and logs, separate signaling problems from media problems, test webhooks on their own, and trace verification codes end to end.

Student Developers Testing Mobile App Backends from Anywhere on Campus

Mobile App Development API Remote Access

How student developers can test a mobile app backend from any building on campus: local vs cloud vs hybrid setups, secure tunnels through campus Wi-Fi, a repeatable testing workflow, and the network, auth, and configuration bugs that only appear away from the lab.

Building High-Performance Cloud Foundations for Enterprise AI Solutions

Enterprise AI Cloud GPU

What enterprise AI actually demands from cloud infrastructure: GPU capacity and power draw, storage throughput that keeps accelerators fed, isolation for fine-tuning on proprietary data, latency that survives production, and a compliance posture that survives an audit.

Beginner Networking Concepts Every Student Developer Should Understand

Networking Guide Web Development

Networking basics for student developers: how IP addresses and ports work, what DNS actually does, TCP vs UDP, HTTP status codes and HTTPS, the client-server model, latency vs bandwidth, and the tools to reach for when a request fails.

Open-Source Calendly Alternatives You Can Self-Host in 2026

Scheduling Self-Hosted Open Source

Cal.com went closed source in April 2026. Here are the open-source, self-hostable Calendly alternatives that took its place - Cal.diy, Easy!Appointments, Tymeslot, Rallly and more - with licenses, versions, and a tested Docker plus Pinggy setup.