SMS two-factor authentication was a real upgrade, but SIM swapping, SS7 interception, and real-time phishing have turned the code into a second password an attacker can read. Why it now gives a false sense of security, and what to use instead: TOTP apps, passkeys, hardware keys, and printed recovery codes.
A sysadmin's hands-on walkthrough of a scratch-based, rootless Docker image for the SimpleX Chat CLI. Since the chat server binds 127.0.0.1 only (issue #6449 is still open), a small socat bridge exposes it on 0.0.0.0. Full multi-stage Dockerfile, build and run commands, and the honest trade-offs.
Spin up and tear down a vast.ai GPU box from the CLI: the vast-qwen.sh script searches offers, rents a 2x RTX 3090, serves Qwen3.8-27B-FP8 through vLLM, and exposes an OpenAI-compatible endpoint over SSH, plus the honest cost math on renting versus subscriptions.
SimpleX Chat is the first messenger with no user identifiers at all: no phone number, no username, no account. Here is what that changes for day-to-day users, how you actually connect with people, and how it compares to WhatsApp and Telegram on privacy and metadata.
A practical comparison of Pullfrog and Vercel's Foreman (the eve software factory): how the four-station pipeline and the GitHub Actions bot each turn issues into reviewed PRs, with real configuration, trust boundaries, and when to use which.
A hands-on, sysadmin-grade guide to Vercel Eve: how the filesystem-first agent framework works, from scaffolding and tools to durable sessions, sandbox backends, and deployment, plus a deep comparison of Eve, Mastra 1.55, and Flue 2.0.
A practical, sysadmin-grade comparison of Fail2ban and CrowdSec: how each detects and blocks malicious traffic, the architecture that separates them (local log analysis vs community-shared intelligence), real configuration and commands, honest pros and cons, and when to run Fail2ban, CrowdSec, or both.