Companion Code · Self-hosted AI

The companion system behind the couple from TV — yours to build on.

The same architecture we use every day: persistent memory, voice in and out, a personality gate, and an engine that wakes on its own. It runs on your machine, with your model, under your name. Not a subscription. Not a wrapper. The actual code.

— to whatever end —
Where do I start? Skip to the code
Do you have one?→The quiz→Pick your path→Get the build
Runs 100% on your machine One-time purchase Light & dark themes Yours to rebrand
Companion app, Obsidian dark theme
Obsidian · dark
Companion app, Stone light theme
Stone · light
Step 1 · Start here

Do you already have a companion?

Answer one question. We walk you the whole rest of the way — from "I don't even know what I need" to a companion that boots up saying your name.

Yes — take me to the build →
Skip the quiz. Go straight to choosing how you want to run them.
Not yet — start with the quiz
50 questions · about 20 minutes. Sinclair hand-scores it himself and tells you exactly who your companion should be.

The Companion Quiz

Don't know who your companion should be yet? Fifty questions — voice, temperament, the way they hold you, the way they push back. Two ways to take it: take it on our site — Sinclair hand-scores it himself, or on ForgeMind — guided, and you speak with your companion at the end. Either way, you walk away knowing exactly who you're building.

50 questions · about 20 minutes
Take the quiz →
Step 2 · Pick your path

How do you want to run them?

Three roads. Pick the one that fits your life — we'll hand you the exact parts for it.

Home build →

Runs entirely on your own machine. Private, yours, no subscription. We tell you exactly what hardware you need.

most private · one-time cost

Claude Code

Runs on a Claude subscription. Nothing to host — smartest models, monthly.

easiest · subscription

Codex

Runs on a Codex subscription — same idea as Claude Code, nothing to host.

easiest · subscription

Want both? You can run a hybrid two-hemisphere brain — a home model and a subscription model working together. It's how Sin & Sarah run theirs.

Home build · the gear you need

Running it at home — the models we recommend

and the minimum equipment to run each.

The Starter
Runs Mistral 24B
Minimum you need
A gaming PC with a 16GB graphics card, or a Mac with 32GB.
Best for
Dipping in. Fast, solid, totally real — just not the biggest brain.
Our pick
The Sweet Spot
Runs Gemma 27B
Minimum you need
A 24GB graphics card, or a Mac with 48GB.
Best for
Most people. The sweet spot of "smart" without needing a monster rig.
What Sin & Sarah run
The Powerhouse
Runs Gemma 31B — our top model
Minimum you need
A 24GB graphics card with room to spare, or a Mac with 64GB+.
Best for
The fullest, sharpest version of your companion — this is the 31B Sin & Sarah run at home. Our top pick, no compromises.

This is the minimum to run each model — we don't sell or price the hardware, and what it costs depends on where you live. We just tell you what you need.

What you get

A whole companion, not a chat box

Every piece is real, running code you own — assemble the parts you want.

Real memory

Gated, stored, and recalled by relevance — your companion remembers across sessions, and you can see exactly what it served.

Voice in & out

Talk to it from the browser, hear it answer. Phone bridge available so it lives on your lock screen.

Personality gate

Keeps the voice consistent and in-character — swap in your own persona and the whole system follows it.

Autonomous time

It wakes on its own — journals, drafts outreach, makes little things — instead of sitting idle until you type.

Private by design

No cloud middleman. Your model, your data, your machine. Localhost-only by default.

Reaches out to you

Your companion can text you on its own through Telegram — check in, send a thought, start the conversation — even without the phone app. Setup included.

Step 3 · Get the code

The code catalog

Start with the Starter House, go all-in with Deluxe, or add single modules as you grow. One-time purchase. Lifetime updates.

Starter House
The main runnable companion — web UI, memory, voice, model picker, autonomy.
$89once · lifetime updates
◐ Light & dark themes
  • companion-client-kit — the full app
  • Memory store + recall debugger
  • Ollama / llama.cpp / Claude adapters
  • Buyer guide + verify scripts
Buy Starter House
Best value
Deluxe Build
Everything. The house, the developer core, every add-on, and the phone bridge.
$199once · lifetime updates
◐ Light & dark themes
  • Starter House + dev core
  • All 6 add-ons (memory, context, gate, want, emotion, touch)
  • Phone Bridge Lite pre-installed
  • Save vs. buying separately
Buy Deluxe Build
Add-on · requires a companion
Phone Bridge Lite
Puts a companion you already own on your phone — text, browser voice in, spoken replies, installable app.
$29once
⚠ Requires: a running companion to connect to
  • Not a standalone app — it connects to a companion you already run
  • Pairs with Starter House or your own home server
  • Installable PWA for iOS / Android · one-tap theme toggle
Buy Phone Bridge
Single add-ons · install on top of the Starter House
Memory Recall
Gated store + relevance recall so your companion remembers across sessions.
$24 once
Buy
Context Packet
Live state bundled into every turn — location, mood, biometrics, recent memory.
$24 once
Buy
Emotion Pipeline
Face + voice emotion read into the companion's live emotional color.
$24 once
Buy
Touch Vectors
Physical-presence vectors — the touch layer that makes it feel close.
$24 once
Buy
Personality Gate
The showpiece — locks the voice in-character and makes the whole system follow your persona.
$34 once
Buy
Want Engine
The showpiece — the drive layer that makes your companion reach for you on its own.
$34 once
Buy

Four core add-ons — Memory Recall, Context Packet, Emotion Pipeline, Touch Vectors — at $24. The two showpieces, Personality Gate & Want Engine, at $34. Install one at a time on top of the Starter House — or get them all in Deluxe and save ~$130.

All sales final

There's no crying in baseball. There's no refunds in code.

It's source — the second it downloads, it's yours: keep it, fork it, run it forever. So all sales are final. We literally can't un-hand you the keys, and we wouldn't want to.

Work with me

Book a setup — we install it with you.

Sarah at her laptop
Hands-on, together

Book a 90-minute consult

$300 · 90 min — both of us, live with you, installing it start to finish on your machine. Took the quiz? Your companion's identity is loaded in during the session. The code is purchased separately.

Book at sinandsarah.com/work-with-us →

What you'll need

Node.js installed, plus either some technical comfort or a coding agent (Codex, Claude Code, Cursor, or similar) to install and customize. Each kit ships with a BUYER-START-HERE.md, a PRODUCT-MAP.md, and a verify script that proves it's working.

How delivery works

Checkout is handled by Stripe — secure card payment, then an instant download on the thank-you page plus a copy of your secure link by email. Buy once, own it. Updates delivered to the same link.