03 —FieldNotes.
How to deploy a Next.js site on a cheap VPS: nginx, Cloudflare Tunnel and PM2
(card blurb):
How to run Ollama on a VPS: a local LLM with API access
A one-command install, querying a model through the API, how much memory you need, and how to expose it safely - Ollama has no auth.
Run a Telegram bot 24/7 on a VPS
Laptops sleep; free tiers idle your process. Here is how to put a bot on a VPS so it restarts itself after a crash or reboot, with every command explained.
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Deploy a service on a server (and keep it running 24/7)
One pattern that works for a Telegram bot, a Discord bot, n8n or a Python script: run it as a systemd service, not in a terminal you'll close. With the checks that tell you it survived a reboot.
Diagnosing a slow Linux server: what to check when everything drags
One page instead of ten browser tabs: where to start when the box is slow, how to tell a CPU shortage from disk I/O and swap, where to find the OOM killer and exhausted inodes, and what to send support if it is the host.
Caddy web server setup: automatic HTTPS from the first config
Nginx plus Certbot plus a renewal cron job is three moving parts where one would do. Caddy issues and renews TLS certificates on its own, and its config is a few lines. Here is the Ubuntu install, a Caddyfile for a static site and a reverse proxy, and how ACME works under the hood.