Podman’s ability to run containers without root privileges improves both security and usability for users on a Linux system. System accounts benefit from running with reduced privileges as well, although there is some setup required. This post demonstrates the complete process of deploying container-based services on Fedora Linux (release 41), examining how systemd affects deployment…
This is a walkthrough on deploying a web application that only consumes memory while in use. Long ago, with inetd services often ran on demand, but a modern app server tends to stay permanently resident in memory, consuming a decent chunk of memory or swap space, especially on a small VPS. I will demonstrate how to use systemd socket activation to spin up our application when it receives a…
Nostr is a new system that brings me joy to work on and use, so I’d like to take a few moments to share a few words about it. Nostr tries to solve the problem of publishing short notes (“and other stuff”) on the Internet. Twitter solved this problem neatly, then complicated it through API and client restrictions, advertising, and a clumsy interface. Finally, they fully unsolved…
This is a minimal example of reporting, analyzing and graphing financial data with ledger-cli and R . The goal is to build on the practice of { tracking every penny } to help visualize trends. Perhaps this can serve as an accelerated starting point for anyone wishing to analyze their own financial data with R. All code is available on my GitHub repository, scsibug/personal-finance-analysis . The…
Tactics I have successfully used to manage my personal finances. Track Every Penny I have tracked essentially every financial transaction I have made since about 2001, at very high fidelity. From my salary, contributions to Social Security, Medicare, and health insurance are individual line items. In my bank, investment, and retirement accouts, each dividend, stock split, record-keeping fee, and…
Euler’s line, showing that a triangle’s orthocenter, centroid, and circumcenter are collinear. Created with, and to learn, MetaPost . Orthocenter – the point formed at the intersection of the three altitudes of the triangle. Altitude – the line formed from a vertex to a perpendicular with the opposite side. Displayed as the intersection of dotted lines. Centroid – the…