Compute
Generate statistical summaries of data over time periods for trend analysis.
Krill
Decentralized process control & automation, built for makers.
Run a krill server on a Raspberry Pi, a laptop, or a rack box. Open the app on any device on your network. Wire sensors, schedulers, calculations, GPIO and dashboards into a live swarm — no cloud, no accounts, no rented brain. The architecture pros use for SCADA, scaled down to fit on a workbench.
your network live · mDNS · LAN
krill server · home.local
phone
control
desktop
dashboard
esp32
sensors
relay-pi
actuators
tablet
journal
laptop
editor
server broadcasts · apps subscribe
zero config · no port forwarding
decentralized
Local-first, by design
Servers discover each other on your LAN and pair into a swarm. Your data, your hardware, your network — never anyone else's cloud.
process control
Real automation, not toys
Data points, cron timers, calculations, GPIO, alerts, dashboards — composable nodes wired into directed graphs. Inspired by industrial SCADA.
maker-first
Runs on a Pi
Aquaponics, vivariums, breweries, greenhouses, workshops. Drop a server on a Pi, plug in sensors, build the system you actually wanted.
pro-grade
Architecture pros use
Typed nodes, explicit observer model, deterministic graph evaluation. The same patterns that run factories — without the seat-license bill.
New to krill? Start with the walkthrough.
Four minutes. Three nodes. One mental model that scales from a single thermostat to a building's worth of sensors.
Pinned Posts
Check out the Categories Menu for a wealth of examples, experiments, blogs and more info.Calculation
Compute derived values from other data points using formulas and aggregations.
Buttons
Manual workflow triggers activated by user interaction for on-demand automation.
Install Krill Desktop App for Linux
Install the Krill Desktop control app on a Debian or Ubuntu Linux desktop
Install Krill Server on Raspberry Pi
Install the Krill Server on a Raspberry Pi, including the Zulu JDK and the krill-pi4j GPIO service
Leak Detection using Logic Gates
Use logic gates and GPIO pins to build leak detection safety interlocks for aquarium and hydroponic water systems with Krill.
TLS Certificate Management
Understanding how Krill servers and clients manage TLS certificates for secure peer-to-peer communication
Krill Peer Mesh Network Architecture
Deep dive into Krill's peer-to-peer mesh networking including beacon discovery, cluster PIN trust, SSE real-time updates, and server settings bootstrap
Server API Key Authentication
Understanding how Krill servers use API keys for client authentication and how to manage them
Python Lambda Executor Security Architecture
Understanding how Krill securely executes user-provided Python scripts with multi-level sandboxing and isolation