Hallett Dev Labs · Public showcase

Applications · Infrastructure · Engineering

Hallett Dev Labs

Applications, infrastructure, and the engineering practices behind them.

A look under the surface

Explore the environment

Start with the big picture. Select a component to see how it fits.

Interactive architecture

Small platform. Connected responsibilities.

Applications, their reference material, and the infrastructure that supports them.

Environment overview

Connections show responsibilities, not network routes.

In the environment

Atlas

A self-documenting application portfolio with verified release references.

One application reference

Bring application purpose, release identity, health, and operating guidance into a consistent private reference.

Application-owned documentation

Keep developer and operational guides with the application source, packaged as immutable documentation artifacts.

A curated public portfolio

Explain the applications and engineering behind the platform through explicitly selected public content.

Read the case study ↗

A conceptual view of the portfolio. Live status and operational details belong to the private reference.

Applications

Atlas

A self-documenting application portfolio with verified release references.

Astro · TypeScript · OCI artifacts

One application reference · Application-owned documentation · A curated public portfolio

Explore the case study →

Thermostat

Home climate monitoring, history, and configurable notifications.

Python · React · PostgreSQL

Climate monitoring · History · Configurable notifications

Explore the case study →

Infrastructure portfolio

Application platform

A Linux container platform for independently released applications.

Linux · Docker · PostgreSQL

Independent application releases

Container images provide explicit application identities and support promotion of validated artifacts.

Validation before promotion

Stage is a release validation environment; the public portfolio describes its role without exposing application endpoints.

Operational reference

Private runbooks capture configuration and recovery instructions while public documentation explains the design.

Backup platform

Separate storage supports encrypted backups and isolated recovery exercises.

NAS storage · Encrypted logical backups

Separate backup responsibility

Backup storage has a distinct role from the platform running the applications.

Encrypted backups

Encrypted logical backups support a recovery strategy without exposing application data in the portfolio.

Recovery validation

Recovery procedures belong in maintained runbooks. Planned validation and completed recovery checks should be recorded separately so the reference reflects what has actually been verified.

How releases work

Releases are validated in an isolated staging environment before production promotion. Immutable documentation travels with each application release.