Costabile KB · Private Library

A quiet library
for building calm
and capable systems.

Personal guides on self-hosting, finance, AI, home lab experiments, and the systems that keep a house running smoothly. Written for reference, designed for focus.

01 — Collections

Six curated shelves, growing all the time.

Each collection holds a set of focused guides. Start with one and wander as far as you need.

03 — Field notes

What's been on the bench this week.

Recent work from the home lab, recent deployments, and small experiments worth sharing.

Note 01

Firefly III Complete Guide: Self-Hosted Personal Finance

A comprehensive guide to Firefly III — what it is, how to install it, key financial concepts, daily workflows, automation with rules, imp...

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Note 02

JSON Complete Guide: From Zero to Mastery

A comprehensive, practical guide to JSON — syntax, data types, nesting, real-world examples, tools, and best practices. Everything you ne...

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Note 03

n8n Complete Guide: Workflow Automation from Zero to Production

A comprehensive guide to n8n — what it is, how it compares to alternatives, deployment options, hosting, key concepts, AI agent workflows...

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