Tech Stack

Diagramming

• Excalidraw
• Mermaid

Software Architecture

• Modular Monolith

Programming Languages

• Go
• JavaScript
• Python (for data engineering)

Scripting

• Bash

Front-End

• Svelte
• htmx

Reverse Proxy

• Caddy
• Traefik

Web Server

• Caddy

Data Storage

Relational

• PostgreSQL
• SQLite

Key-Value

• NATS
• Redis

Object

• NATS
• MinIO

Time Series

• TimescaleDB

Analytics

• DuckDB

Data Engineering

• Redpanda Connect
• DuckDB
• pg_duckdb
• dbt
• Evidence

Optimization

• OR-Tools

Messaging

• NATS
• Centrifugo

Workflows and Durable Execution

• Temporal

Identity and Access Management (IAM)

• ZITADEL
• Keycloak

Policy Engine

• Open Policy Agent (OPA)

Secrets Management

• SOPS

Observability

• Grafana Stack
• Prometheus
• OpenTelemetry
• OpenTelemetry Collector

Testing

• Postman + Newman
• k6

Container Orchestration

• K3s
• K9s

Infrastructure Automation

• Terraform