Programming Leftovers
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The scaling limit of Baxter permutations
Versions of the following question can be traced back at least to the work of Henri Poincaré (Poincaré (1912)):
In how many ways a simple loop in the plane can cross a line a specified number of times?
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Peter Hutterer: gitlab.freedesktop.org now has a bugbot for automatic issue/merge request processing
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Dirk Eddelbuettel: New Achievement Unlocked: Bugfix Patch into Stable Release Update
Last weekend was the bi-annual time to roll the main machine and server to the current Ubuntu release, now at 23.04. It must now have been fifteen or so years that I have used Ubuntu for my desktop / server (for “reasons” I may write about another time). And of course it all passed swimmingly as usual.
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You might not need Helmet.js
This post is for people familiar with Helmet.js. It was last updated for Helmet 7.0 and Express 4.18.
I maintain Helmet, a sorta-popular npm package which sets various HTTP security response headers.
It’s designed to be easy to use and integrate, but if you want to avoid a dependency and get a slight performance boost, here’s how.
By default, Helmet adds 12 HTTP response headers and removes one.
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Social RSS
For the most part, I think the RSS reader apps that we have now are actually much nicer than Google Reader ever was. So my nostalgia is very tempered. But the social features of Google Reader, I don’t think, have quite been replicated yet. I wish there were videos or something of how that all worked so I could remember it better, but I seem to remember having friends on Google Reader, well before Google had Google+ or anything like that.