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June 16 Using sed to extract a patch from a file While running the OpenAI Codex CLI locally, I came across a sed command that prints specific lines from a file. The agent often uses this command to output a portion of a file: sed -n '12,15p' <filename> This prints lines 12 through 15 of <filename>. March 29 dotGo 2014 - John Graham-Cumming - I came for the easy concurrency I stayed for the easy composition I had to watch this twice to fully appreciate it. John Graham-Cumming crams a 40-minute talk into 14 minutes. First, he shows how Go’s basic types and stdlib make writing a DNS lookup program quite trivial. Then he walks through how he generalized it with a simple interface. The code can be found here. ...

December 31 Exploring network programming by building a Toxiproxy clone – Jordan Neufeld Great talk by Jordan Neufeld on building a toy proxy server in Go that adds latency between upstream and downstream connections. It sits between a client and server, introducing delays, dropping connections, and simulating errors for chaos testing. December 26 Reflecting on life – Armin Ronacher The best way to completely destroy your long term satisfaction is if the effort you are putting into something, is not reciprocated or the nature of the work feels meaningless. It’s an obvious privilege to recommend that one shall not work for exploitative employers but you owe yourself to get this right. With time you build trust in yourself, and the best way to put this trust to use, is to break out of exploitative relationships. ...