25% off for a friend. $10 for you. Refer someone today.

View Cart


  • Solid color t-shirts are 100% cotton; heather grey is 90% cotton, 10% polyester; charcoal heather is 52% cotton, 48% polyester
  • Ethically sourced
  • Slim fit, but if that’s not your thing, order a size up
  • 4.2 oz (145g), but if that’s too light, try our heavier Classic T-Shirt


+ Read all 150 reviews
Get 10% off when you sign up for super fun emails.
It Works In My Container Funny Developer Design Black
Designed by geeksta
Containers are a popular choice in modern software development. In such an environment "It works in my container" is a programmer excuse you may here more often than its popular predecessor "It works on my machine". A design for developers, engineers and programmers with a sense of humor who work on containerized applications. It shows the "Shrug" unicode emoticon, a famous Internet meme, and the prospective top excuse in IT. Ideal for job, meetings and conferences.

Unisex T-Shirt

It Works In My Container Funny Developer Design Black by geeksta