---
title: "3DARCH-FT-7 — Integrated local runtime with persistence and health checks"
description: "Enable developers to start the browser workplace, real-time backend, and database as one local environment and determine whether each service is healthy."
---

# Integrated local runtime with persistence and health checks

| Feature | Parent Epic | Delivery status | Status source | Owner | Approved for Solution |
|---|---|---|---|---|---|
| `3DARCH-FT-7` | [3DARCH-EP-1 — Engineering Platform, Quality, and Operability](../../3darch-ep-1.md) | `IN_BACKLOG` | `EXACT` | 3D Architecture Wizzard team | No |

## Description

Enable developers to start the browser workplace, real-time backend, and database as one local environment and determine whether each service is healthy.

## User or operator problem

Developers need the browser client, backend, and database to start together with visible dependency health.

## Expected value

Provides a repeatable integration environment and shortens diagnosis of startup or dependency failures.

## Scope

Includes coordinated local startup for frontend, backend, and PostgreSQL plus storage, ordering, and health checks.

### Exclusions

- End-user product behavior and solution or release authorization are outside these engineering Features.

## Acceptance outcomes

- [ ] One local workflow starts the frontend, backend, and PostgreSQL dependencies.
- [ ] Service ordering and persistent database storage are declared.
- [ ] Frontend, backend, and database health checks expose startup failure.

## Dependencies

- [3DARCH-FT-1 — Reproducible monorepo development workspace](./3darch-ft-1.md)
- [3DARCH-FT-6 — Repeatable database schema lifecycle](./3darch-ft-6.md)

## Risks

- Service health can appear green while a dependency or browser route remains unusable.

## Human approval

Linas approved this Feature for documentation on 2026-09-02T10:40:43.220Z. It is **not Approved for Solution** and has no implementation approval.

- [Documentation decision](https://discord.com/channels/1518726359512387766/1543925247361814568/1544658325738885201)

## Delivery status evidence

The Feature was separately registered at `IN_BACKLOG` as an accepted catalogue boundary. This records backlog retention, not design or delivery progress.

- Event: Catalogue registration
- Actor and authority: Linas — Human project team member
- Reason: The Feature catalogue was accepted for governed documentation and retained in the backlog.
- [Status evidence](https://discord.com/channels/1518726359512387766/1543925247361814568/1544658325738885201)

## Architecture traceability

- Requirements: none derived.
- Readiness: Not started.

Architecture solution work must not begin until a separate human **Approved for Solution** decision is recorded.

## Tasks

[Review the Tasks group](./3darch-ft-7/tasks.md). No canonical implementation Tasks have been defined.

## Original source

- [Discord – Scope – Linas: original Feature request](https://discord.com/channels/1518726359512387766/1543925247361814568/1544647879111483562)
- [Discord – Scope – Linas: proceed with documented mapping](https://discord.com/channels/1518726359512387766/1543925247361814568/1544658325738885201)

### Legacy implementation evidence

The Feature boundary was mined from legacy revision `c0ced47ecaf4426f47e5c2e4868677f7144b951a`.

- [`docker-compose.yml`](https://gitea.lego-cloud.eu/corp-v1-3darch-legacy/corp-v1-3darch-legacy/src/commit/c0ced47ecaf4426f47e5c2e4868677f7144b951a/docker-compose.yml)
- [`apps/nebula/Dockerfile`](https://gitea.lego-cloud.eu/corp-v1-3darch-legacy/corp-v1-3darch-legacy/src/commit/c0ced47ecaf4426f47e5c2e4868677f7144b951a/apps/nebula/Dockerfile)
- [`apps/singularity/Dockerfile`](https://gitea.lego-cloud.eu/corp-v1-3darch-legacy/corp-v1-3darch-legacy/src/commit/c0ced47ecaf4426f47e5c2e4868677f7144b951a/apps/singularity/Dockerfile)
- [`apps/singularity/src/routes/health.routes.ts`](https://gitea.lego-cloud.eu/corp-v1-3darch-legacy/corp-v1-3darch-legacy/src/commit/c0ced47ecaf4426f47e5c2e4868677f7144b951a/apps/singularity/src/routes/health.routes.ts)