The layers of abstraction in most technology stacks has gotten incredibly deep over the last decade. At some point way down there in the depths of most data applications somebody somewhere has to actually read or write bytes to storage. The flexibility of Apache Parquet has me increasingly convinced that it just might be the last data file format I will need.

Large Language Models have made the relationship between software efficiency and environmentalism click for many people in the technology field. The cost of computing matters.

The process of switching to a more electric house, and therefore more renewable, is two parts: remove fossil fuel powered components and remove load. I wrote previously about using a home battery which has really made a big dent in the ability to switch loads towards electricity. I have recently done some more analysis on the humble clothesline.

The oft touted principles of “pragmatic software development” are by and large nonsense. While not unique to software development many people like to choose their dogma and then wield it uncritically when any opportunity arises. “Don’t Repeat Yourself” (DRY)is one of the “principles” that has always irked me.

The Apache Parquet file format has become the de facto standard for large data systems but increasingly I find that most data engineers are not aware of why it has become so popular. The format is interesting especially when taken together with most cloud-based object storage systems, where some design decisions allow for subsecond or millisecond latencies for parquet readers.

The discourse around “AI” has finally started to shift to a very key question: who are the winners and the losers? The fundamental thesis of shoving Large Language Models (LLMs) into everything is that it will increase productivity. Setting aside the question on whether those productivity gains are happening or even possible, the question of who reaps those rewards is starting to become a larger concern by software developers I follow.

I deploy on Friday. I have heard the arguments to the contrary and I still continue to deploy on Friday. The end of the week is as good as any other to deploy! Why wait another two days to realize the value or return-on-investment from the work I have queued up? I feel confident making this judgement call for two important reasons: I am confident in the success of the changes being deployed and I am willing to take ownership for when I’m wrong.

Writing has been a part of my work for a long time, it helps me think and more importantly it helps me share ideas with other developers. Recently a tremendous amount of my time has been spent writing internal design documents, blog posts, and other materials. By the time it has come to personal blogging my words all been spent.

I spend a lot of time looking at and optimizing costs, kind of for anything. I do it as part of my day job, I do it as part of my night job, and of course for my home life as well. Spreadsheets on spreadsheets tracking and analyzing, finding inefficiencies and opportunities for investment. In 2024 an opportunity presented itself to invest in a next generation home battery which I can now unequivocally say is a good investment.

Some recent changes to the primary server in my office left the fans running louder than previously. I do have some noise canceling headphones but I still don’t want to hear the sound of jet fans from the other room, with a little bit of free time I was able to nail down and correct the behavior using ipmitool(1) and magic bytes.