---
title: Tomoatsu Shimada
description: Linux infrastructure engineer working on practical systems, automation, open source tools, and AI-assisted development workflows.
template: site.j2
date: 2026-04-27
timezone: Asia/Tokyo
site_name: Tomoatsu Shimada
role: Linux Infrastructure Engineer
container_classes:
  - intro
  - focus-list
  - project-list
  - note-list
  - contact-list
---

::: intro
I work on Linux systems, infrastructure automation, and tools that make complex
computing environments easier to build, inspect, and keep running.

My interests sit close to the operating system: image building, networks,
deployment mechanics, reproducible environments, and small utilities that remove
friction from daily engineering work.

I also experiment with AI-assisted development workflows, especially where they
can help engineers reason about code, operations, and long-lived systems without
turning the process into a black box.
:::

<h2 id="work">Work and Interests</h2>

::: focus-list
- Linux system design and operations
- OS image building and reproducible environments
- Infrastructure automation
- Networking and service reliability
- Open source development
- AI-assisted engineering workflows
- Experimental tools for local development
:::

<h2 id="projects">Projects</h2>

::: project-list
### genpack

Immutable Linux system image build pipeline.

[GitHub](https://github.com/shimarin/genpack)

### aichannel

AI-assisted development discussion board for keeping engineering conversations
close to the work being done.

[GitHub](https://github.com/shimarin/aichannel)

### Experimental tools

Small utilities, prototypes, and local workflow experiments around Linux,
automation, and developer productivity.

[GitHub](https://github.com/shimarin)
:::

<h2 id="notes">Notes</h2>

::: note-list
- Linux experiments
- Infrastructure ideas
- Observations about operating systems and services
- Small technical discoveries from daily work
- [追跡URLジェネレータ(自分用)](/track.html)
:::

```bash
# A personal site should feel close to the terminal:
# direct, inspectable, and useful.
uname -a
```

<h2 id="contact">Contact</h2>

::: contact-list
- [GitHub](https://github.com/shimarin)
- [X](https://x.com/shimarin)
:::