Commands in.
Useful things out.

Small experiments and utilities. Built to do one thing well.

See the experiments ↓

01 / Experiments

Small things that work

One problem at a time. Clear about what is finished.

working prototypeweb app + display feed

experiment 001

Green Hours

See what to run now, what can wait, and what waiting could save.

Green Hours turns illustrative hourly prices into plain guidance for dryers, dishwashers, EV charging, and other flexible household activities.

Try Green Hours Broad regional sample estimate

MY HOME / 5:00 PM14.6¢ / kWh

Wait if you canDelay flexible, high-energy activities.

Best sample window: 9 PM

Charge the carWait until 1 AM

Run the dryerCould save about 35¢

Watch TVOkay now

betaweb app · independent site

experiment 002 / live

Daily Shell

Learn commands. Take command.

Daily Shell is a structured, 10–15-minute Linux command-line learning app with safe simulated practice, private scoring, retakes, and persistent cross-device progress.

Try Daily Shell Guest progress stays on this device · optional Google sync

daily.shellBEFORE DAY 01

FOUNDATIONS · 8–10 MINUTESMeet the terminal.

Understand the workspace before you run your first command.

Start the primer

learner@linux:~ $ _

Read the workspaceterminal, shell, and prompt

Read a commandoptions, arguments, and paths

Stay in controloutput, keys, safety, and help

Try the loopone safe simulated command

Safe simulation · no real shell access

More small things as I finish them.

Every experiment comes with the thing itself, a short note, and a clear list of limits.

02 / About

A place for small software.

I build small tools here. Some grow up. Some stay small. They all start with a problem worth solving and a version you can try.