SNTX | Software Lab

13 yrs

quietly shipping

$ date --since 2013

10

systems in production

$ ps aux | wc -l

03

agents in the team

$ wc -l /etc/sntx/passwd

02

ongoing projects

$ ls ./projects/

sntx@lab ~ % cat ./services.md

What we do

# six disciplines · pick a tab

// 01 · backend · main

Elixir backends

Phoenix for web, Absinthe for GraphQL, Broadway for data pipelines. REST and JSON:API when that's what the client needs.

+ api GraphQL via Absinthe, REST, JSON:API — pick what fits your consumers
+ otp supervision trees, GenServers, hot upgrades, distributed state
+ pip Broadway pipelines — backpressure, batching, acknowledgment built in
+ ops telemetry, structured logging, health checks shipped with every service
+ lib custom Hex packages — shared business logic, internal tooling

Elixir
Phoenix
Absinthe
Broadway
OTP
Postgres

Phoenix for web, Absinthe for GraphQL, Broadway for data pipelines. REST and JSON:API when that's what the client needs.

+ api GraphQL via Absinthe, REST, JSON:API — pick what fits your consumers
+ otp supervision trees, GenServers, hot upgrades, distributed state
+ pip Broadway pipelines — backpressure, batching, acknowledgment built in
+ ops telemetry, structured logging, health checks shipped with every service
+ lib custom Hex packages — shared business logic, internal tooling

Elixir
Phoenix
Absinthe
Broadway
OTP
Postgres

Multi-stage pipelines with validation gates between steps. Bulk processing, transcription, research agents, local and cloud models behind one routing layer.

+ pip multi-stage processing — classification, extraction, validation gates between steps
+ asr transcription with diarization, summarization, structured output
+ agt research & analysis agents with pgvector memory and tool use
+ rou provider routing — local models, OpenAI, Anthropic, fallback chains

pgvector
llama-server
vllm
OpenAI
Anthropic
Whisper

We build advanced web apps, not landing pages — so mostly SPAs. Whatever framework your team already knows.

+ spa single-page apps with Vite, client-side routing, state management
+ ds component libraries, theming, consistent UI across products
+ rt realtime UIs over WebSockets and GraphQL subscriptions
+ a11 accessible by default, not patched after an audit

React
Vue
TypeScript
Vite
Electron

React Native for most projects, same language as your web stack. Flutter when it fits better. Both ship to both stores.

+ rn React Native with Expo; shared components with web
+ flu Flutter for performance-critical or standalone apps
+ off offline-first; local DB, background sync, conflict resolution
+ rel release pipelines, OTA updates, crash routing

React Native
Expo
Flutter
Dart
TypeScript

Server setup, database tuning, container orchestration, server maintenance. The stuff that keeps production running.

+ db Postgres schema design, partitioning, query optimization, ClickHouse for analytics
+ srv VPS provisioning, hardening, audits, maintenance
+ cnt Docker and Podman — compose stacks, video pipelines, registry management
+ dep scripted builds and deploys — nothing manual, everything reproducible
+ ci CI pipelines, automated testing, deploy-on-merge workflows
+ obj self-hosted S3-compatible object storage

PostgreSQL
ClickHouse
Docker
Podman
Gitea CI
MinIO
OpenObserve

Products we build for ourselves. A trading assistant, a 3D MMO, an e-commerce platform.

→ fbot AI trading assistant for IBKR
→ b-l before light · 3D 4X MMO
→ fan fanty · e-commerce platform

see ./projects

sntx@lab ~ % ls -la ./projects/

Projects

# 3 dirs · things we build for ourselves

P/02 2025 - now in development

01 / 03

BEFORE LIGHT

// experimental 3D 4X MMO

3D strategy MMO built on a custom Three.js engine. A root Elixir server handles accounts, chat, and shared data, and lets node servers sync state across the cluster. Each node is a standalone game server hosting its own persistent universe with auto turn-based combat.

Elixir × 2
Three.js
React
Phoenix channels
GraphQL
auto combat
persistent world

P/03 2017 - now in development

02 / 03

FANTY

// e-commerce platform for unique goods

E-commerce platform for crafts, antiques, and one-off vintage goods. Phoenix API backing four React storefronts that share a common component and service library. Designed around single-quantity inventory.

Phoenix
React
Material UI
Postgres
4 apps
4 shared libs

P/01 2026 internal

03 / 03

FBOT

// AI-powered trading assistant

Hooks into your IBKR account via the TWS API, tracks open positions, and aggregates signals — news sentiment, market trends, technical indicators — through LLM analysis to surface trade ideas. Elixir backend, Vue management UI, local inference via llama-server.

Elixir
OTP
IBKR TWS API
Vue
llama-server
LLM routing
market analysis

sntx@lab ~ % cat /etc/sntx/passwd

Crew

# 3 entries

# /etc/sntx/passwd

uid	login	role	since	shell
00	mateusz	founder / backend / frontend	2013	/bin/zsh
01	zoe	data / management / QA	2019	/bin/fish
02	ed	design / UX	2025	/bin/sh

$ wc -l ./crew 3

sntx@lab ~ % tail -n 3 /var/log/journal

Journal

# stuff we learned the hard way

$ ls ./posts/
total 0
// soon (tm)

sntx@lab ~ % mail -s ... biuro@sntx.pl

Write

# plain email; we read everything

What we do

Elixir backends

AI & LLM systems

React & Vue frontends

Mobile apps

Infra & data

Our lab