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Jared Harley

A forever tinkerer, camper, traveler, amateur photohrapher, and whatever else tickles my fancy. Kafka admin by day.

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Latest posts

Titan II Missile Silo Control Room

I came across Beth Mathews' post, "Why So Many Control Rooms Were Seafoam Green" , and the post image of the post immediately made me think of some pictures I took back in February. Why So Many Control Rooms Were Seafoam Green The Color Theory Behind Industrial Seafoam

Simulating a glowing fireplace

David Capper wrote a simply fantastic blog post detailing how he took a long string of WS2812B LEDs and an RP2040 and turned it into a glowing fireplace simulation. The post details his work on black body radiation and has some interactive bits showing how the ember simulations work. I

Narcissus

A stark black and white photo of a yellow daffodil My daffodils (from the genus Narcissus, I’ve learned) have bloomed, and the tulips won’t be far behind. Spring is getting here in a hurry!

First hike of 2026

The weather was great for the first hike of the year with the Mountain Trails Hiking Club . This was originally planned as a snowshoeing trip, but we haven’t had enough snow to make that happen. Overall, the portion of the loop we did, including the “Stairway to

Becoming an official Kafka Contributor

While I was in the process of preparing our Confluent Platform installation for an upgrade to Confluent Platform 8.0, which included Apache Kafka 4.0, I discovered a small typo in the Log4j2 configuration file - the Kafka State Change Appender log was incorrectly being rotated from state-change.log

Installing an RPM with an Environment Variable using Puppet

Dealing with an RPM that uses an environment variable to accept an EULA when performing automated installations with Puppet.