---
title: Uses
updated: 2026-11-02T03:55:08-05:00
canonical: https://waltspence.com/uses
---

Only things in daily use. If it is listed, it is running.

## Machines

- **Helm** — MacBook Pro, Apple silicon, 24 GB. Where I work and where Claude Code and the local model server live.
- **Knowledge** — Mac mini. Runs Knowfer (Rails + Postgres) and its MCP server behind Caddy.
- **Orchestrator** — Ubuntu on a Ryzen 9 build. Crons, the agent gateway, n8n, the shared mesh's source of truth.
- **Worker** — Ubuntu. Peer node, probes, batch jobs.
- **Public** — a small Linode VPS for the things that need a public address.
- UniFi for the network.

## Infrastructure

- Tailscale for the overlay. dnsmasq plus `/etc/resolver` for names. Caddy in front of anything HTTP.
- launchd on the Macs, systemd timers on Linux. Cron for anything that runs on a schedule and does not need a service.
- PostgreSQL for anything durable. Redis for cache, queues and pub/sub. Git as the sync layer for operational state.

## Building

- Ruby on Rails as the system of record. Vue 3 in JavaScript on top. Vite.
- Python for tools and workers. `uv` for environments. Standard library first.
- Swift for the occasional menu-bar thing.
- Claude Code for building. Hermes as the fleet's agent runtime. DeepSeek for cheap auxiliary tasks. MLX for local inference when a question should not leave the building.

## Writing and thinking

- A Markdown vault, synced by git, with an index that agents can read.
- Telegram for notifications from the fleet. Plain text for everything that has to survive a decade.

## At work