What I learned this week Software Docker relies on Linux kernels, which means that macOS and Windows cannot run Docker natively without some additional steps. Each operating system has its own solution for running Docker. For example, Docker for Mac uses under the hood actually a virtual machine that runs a Linux instance, within which Docker operates. It seems you can get a shell on this VM via: docker run -it –privileged –pid=host debian nsenter -t 1 -m -u -n -i sh

What I learned this week Software T-Strings Business/Finance On the ridiculousness of the tax code Interesting Links Math/Stats Travel Spent the week in Japan, had an amazing time. Will record what I did in the travel section. Other Do a trip with friends at least once per year. Biggest lesson from Rob who I rode with in Kiryu.

What I learned this week Software Unpixelate PG wire Business/Finance Battery powered profits not quite there Interesting Links Math/Stats Travel Flew to Japan, and now I’m in Ota City, Japan! Other Furthest Time zones Mailing Potatoes

What I learned this week Software #! - interesting/tidbits https://www.openwall.com/lists/oss-security/2025/04/01/1 Billion lol attack Old article on airbnb photo loading Business/Finance Should we make advertising illegal? Interesting Links Math/Stats Travel Other Posting this from Tokyo after 27 hours of travel #dedication https://youtu.be/ADXX4fmWHbo?si=ce1t10JYyMbK3TPU

What I learned this week Downloading games from the radio it’s cool to read about these times as I’ve never gotten to experience this. April Fools Software Business/Finance Google Finance’s broken feature Interesting Links Math/Stats Travel Other Hilarious post on a vary volatile compound Awesome Chess Project

What I learned this week Software Exploring UV You can run a tool in an ephemeral environment uvx pycowsay ‘hello world!’ uvx is an alias for uv tool run install different python versions uv python install 3.10 3.11 3.12 and pin them in a directory uv python pin 3.11; however, by default, Python versions are automatically downloaded as needed without using uv python install The .python-version file can be used to create a default Python version request.

What I learned this week Software git stash list list git stashes and then you can drop via: git stash drop stash@{0} git stash REPL stands for Read Evaluate Print Loop Business/Finance Interesting Links How air breaks work. Essentially uses pressurized air instead of hydraulic fluid. Comes with the benefit of being “on” if the system breaks causing the vehicle to break… which has the tradeoff of making them difficult to move.

What I learned this week Software Duckdb with the… UI Tarball Merge Statements Git Bundle + CDNs and such Business/Finance Redfin getting acquired Interesting Links The largest ZIP Code, in square miles, in the contiguous U.S. is 30,683 square miles. Math/Stats Travel Traveling to LA and Santa Barbara to visit Ben for his Spring Break. Other I don’t take sides I take pictures

What I learned this week Software DuckDB has a bar function which draws a band whose width is proportional to (x - min) and equal to width characters when x = max. You could also implement this in other DBMS with ratio_to_report() and repeat()… repeat I hadn’t heard about until this week. There’s some other fun ones in Redshift like initcap() which capitalizes the first letter of each word. Postgres has nice docs on Character Types

What I learned this week Software Mac: To quickly find text, select some text and press ⌘E followed by ⌘G. After copying a file, press ⌥⌘V to move the file instead of pasting a copy of it. Business/Finance Interesting Links Markov Chains One use of Markov chains is to include real-world phenomena in computer simulations. For example, we might want to check how frequently a new dam will overflow, which depends on the number of rainy days in a row.