Drop 02 · Works On My Machine

Model wearing It Works On My Machine in Natural
It Works On My Machine A$39

Drop 02 · Works On My Machine

For people who read the {docs}.

New designs, released in small drops and printed to order on Bella+Canvas Airlume cotton. One price: A$39.
Size
XS–4XL
Price
A$39 each
Model wearing Annual Production Deployment in Navy and a Santa hat
Model wearing Annual Production Deployment in Navy and a Santa hat

// drop_06Coming soon

Change Freeze

For everyone who ships before the freeze.

latest drop

Drop 05 · Nightly Batch

also live

Drop 04 · Human in the Loop

also live

Drop 03 · Mustache Driven Development

also live

Drop 02 · Works On My Machine

also live

Drop 01 · Coffee & Code

made to be worn

What you're buying

Every tee is printed to order on the same retail-fit blank, so the fit is the same whichever design you pick.

Close-up of the printprint · close up
Flat lay of the teeblank · Bella+Canvas 3001
Ribbed crew collar of a Bella+Canvas 3001 with its tear-away labelcollar · tear-away label
colours · vary by design
Blank
Bella+Canvas 3001
Weight
142 g/m²
Fit
Unisex retail fit
Sizes
XS–4XL
Fit & care guide

I wanted tees about my field that didn't need explaining.

I still work in tech, and I take it seriously. TechTees is where the other half of me gets a say.

the founder · designed by a working software engineerRead our story

design notes

Every design has a reason

No Cycles in Black on Bella+Canvas 3001, worn by Lachlan. AI-generated model.

No Cycles

A pipeline is a directed acyclic graph: every task runs after the ones it depends on, and nothing ever loops back. Break that rule and the scheduler refuses to run. Eight nodes, every arrow pointing down, one ring at the end.

Medallion in Black on Bella+Canvas 3001, worn by Sophie. AI-generated model.

Medallion

The medallion architecture keeps data in three layers: bronze for raw data as it lands, silver for cleaned and joined tables, gold for the numbers the business reads. Each ring is one step closer to something you can trust.

IS NOT NULL in Black on Bella+Canvas 3001, worn by Marcus. AI-generated model.

IS NOT NULL

In SQL, NULL means unknown, so comparing anything with NULL gives unknown rather than true or false. That is why WHERE x = NULL matches nothing and you write IS NOT NULL instead. Heavy type, cut at the edges, because the value is not all there.

in the wild

Worn by customers

email

New drop. Read the commit message.