LEFFEN LABSLBS-01
60°23′N · 5°19′E·STATION ONLINE·
Bergen, Norway · LAT/LON 60°23′N · 5°19′E

Independentsystems work,built to holdthe line.

Leffen Labs is the working portfolio and late-night basement of Leffen — one engineer building production AI in the open and a sovereign homelab in Bergen. Every experiment here is live, documented and yours to follow.

$ status
0sites on the mesh
0live experiments
0months on Seaway
WAYPOINT 01THE OPERATORWHO'S ON WATCH
NAMELeif Terje
CALLSIGNLeffen
STATIONBergen, Norway
STATUSON WATCH

One engineer,
a coastline of ideas.

I'm Leif Terje — "Leffen" on the radio — a systems engineer running a well-equipped homelab in Bergen, on the west coast of Norway. When the weather allows, the lab moves aboard my sailboat at Bergens Seilforening, which doubles as a floating test bench for the systems I build.

I care about software you can own end to end: local-first inference built piece by piece, agents that survive a week unattended, and infrastructure sturdy enough for a storm. The fully sovereign cluster is the destination — less hype, more uptime.

  • ON THE BENCHSeaway routing engine · Claude agent fleet · Talos k8s
  • OFF THE CLOCKSailing out of Bergens Seilforening
  • RUNS ONFiltered coffee & a UniFi-meshed node rack
LOCAL-FIRSTSELF-HOSTEDOPEN SOURCEOFF-GRID
WAYPOINT 02THE LABAI & EXPERIMENTS

What's running in the basement

Six live experiments in sovereign AI, autonomous agents and self-hosted infra. This is the proving ground — every technique here runs in the open.

EXP-422 · claude-agent-fleetRUNNING
▍
RUNNINGMONTHS ON SEAWAY 6
WAYPOINT 03PUBLIC PROJECTSOPEN INFRASTRUCTURE

Things I've moored in the open

Open-source tools, a sea-map editor and the community platforms that run on them. Berths are numbered seaward → shore — 01 sits to starboard (right).

04
03
02
01
OPEN SOURCEv2.0 shipped

Driftnet

Edge scheduler

Schedule autonomous jobs across spotty connections — deferred is not failed, nine missed hours are one run, and nothing is lost in the gap.

View repositoryBERTH 04
OPEN SOURCE3.1k stars

Sounder

Signal K panel

Instruments and alarms off your own Signal K server. A spike is not a shoal, and a sensor that goes quiet turns amber, never green.

View repositoryBERTH 03
OPEN SOURCE12 collectives

Harbormaster

Harbour discussions

Self-hosted discussions about harbours — approach, holding, shelter — where every post records when the writer was actually there.

View repositoryBERTH 02
OPEN SOURCE8.4k users

Tidewater

Sea-chart editor

Draw a coastal route in the browser and be told which legs cross land or run shallower than your keel wants. No tiles, no routing service, no network.

View repositoryBERTH 01
SHORE ◄tide +0.4m · charted depth 4.2m► SEAWARD
WAYPOINT 04GUIDES & EDUCATIONTHE LIBRARY

Teaching the things I had to learn the hard way

Courses, workshop recaps and field guides for engineers building their own sovereign infrastructure. Authority you can read before you ever book a call.

C-01COURSEBuilding a sovereign AI homelab6 modulesIntermediateIN THE YARD
C-02COURSEAgentic workflows from scratch8 modulesAdvancedIN THE YARD
G-14GUIDEA pragmatic guide to local inference18 min readBeginnerIN THE YARD
G-21GUIDEWiring a mesh that survives a storm24 min readIntermediateIN THE YARD
W-07WORKSHOPSelf-hosting without burning out90 min recapAll levelsIN THE YARD
W-09WORKSHOPCharts, tides & spatial RAG2 hr recapIntermediateIN THE YARD
G-22GUIDEThe browser was lying too9 min readIntermediate
WAYPOINT 05THE ARCHIVEMEMORY BANK

Logbook of past builds & landfalls

A scannable record of releases, builds and talks — the wake left behind the work.

2026 · 08Field note published — the browser was lying tooRELEASE
2026 · 07leffen-labs ships — Gitea CI to the Talos clusterRELEASE
2026 · 05Seaway plots its first full coastal routeBUILD
2026 · 01Seaway keel laid — routing engine work beginsBUILD
2025 · 10Devlog goes live — friction-free journaling, self-hostedRELEASE
2025 · 06Talos k8s cluster online on 2× ProxmoxBUILD
2025 · 03UniFi mesh links basement, boat and cottageBUILD
WAYPOINT 06THE BROADCAST HUBMEDIA / VIDEO

Transmissions from the lab

Deep-dive screen-shares, conceptual vlogs and raw, uncut showcases — pick a band.

SCREEN-SHARESIGNAL · NO FEED

Building a 70B model server in my basement

42:18·188k views
SCREEN-SHARESIGNAL · NO FEED

How the agent swarm actually plans

31:04·97k views
SCREEN-SHARESIGNAL · NO FEED

Spatial RAG over nautical charts, end to end

55:40·64k views
BROADCASTING ON ALL BANDSSubscribe to the channel
WAYPOINT 07CONTACTOPEN A CHANNEL

Come say hi
to the station.

Got a question about a build, an idea worth trading, or just want to compare notes on sovereign infra? The channel's open — send a signal.

  • DIRECTleffen@gmail.com
  • BROADCASTFollow the channel for new transmissions
  • LOCATIONBergen, Norway · 60°23′N · 5°19′E
new-transmission.txt