Soulstack

Calm software. Serious delivery.

Soulstack.gg, Hollow, Stacks, TrustCut, Soulstack Studio, and Soup. Software built to run cleanly.

Products.

Soulstack.gg covers Stream Studio, Chat Bot, Quest, Slate, Overlay Builder, and Gander. Hollow is a personal AI workspace. Stacks is a real-time messaging platform. TrustCut is a UK barber booking marketplace. Soulstack Studio builds atmospheric games. Soup is a local-first desktop workspace.

Desktop application

Soup

A minimal local-first desktop editor and note workspace.

  • Local-first workspace model
  • Markdown notes and lightweight code editing
  • Integrated preview and terminal

Creator platform

Soulstack.gg

Stream Studio, Chat Bot, Quest, Slate, Overlay Builder, and Gander. One platform.

  • Stream Studio: Chat Bot, Quest, and Pond Party in one workspace
  • Slate: real-time collaborative canvas with OBS overlay
  • Overlay Builder: visual OBS widgets and scene management
  • Gander: Discord bot with games and server moderation
  • Creator Console: configure every product from one place

Personal AI workspace

Hollow

A unified personal AI workspace for notes, code, documents, and planning.

  • Ten apps under one identity and one design system
  • Console for chat, code, and multi-agent workflows
  • Notes, Workbooks, Slides, Diagram, PDF, Forms, Files, and Calendar
  • Privacy-first defaults with email and UID allowlist sign-in
  • Hosted on Firebase with Vertex AI for AI features

Real-time messaging

Stacks

A real-time messaging platform for focused community spaces.

  • Real-time channels, presence, and media
  • Firebase Auth with email, Google, and GitHub providers
  • Firestore security rules and App Check enforced end to end
  • Trusted callables for moderation and TURN credential issue
  • Bundle-budget enforced builds and Firestore rules tests

Booking marketplace

TrustCut

A barber booking marketplace with a hybrid guest, client, and barber flow.

  • Hybrid guest, client, and barber authentication
  • Postgres for canonical data, Firestore for live projections
  • Next.js 16 App Router with server components by default
  • AI booking assistant with tool calling on Vertex AI
  • Hosted on Firebase App Hosting in europe-west4

Game development

Soulstack Studio

In-house game development built around atmosphere and tool-first production.

  • React Three Fiber, drei, zustand, and post-processing pipeline
  • First-person controls with pointer lock and footstep audio
  • Vitest unit tests and Playwright end-to-end smoke tests
  • Tool-first content pipeline for levels and gameplay packs
  • Atmosphere-led design over scope creep

Open source

Open-source tools and utilities.

Practical projects, available under open-source licences.

AGPLv3

DocSync

Bi-directional sync between Confluence Cloud and a GitHub /docs folder, with a multi-model RAG chat over the synced documentation. Citations are grounded in the live docs and routed through Vertex AI.

AGPLv3

OpenSoul

A streamer tool and modding engine for Dark Souls. In-game data retrieval, automated widgets, raffle wheels, timers, and interaction-driven events.