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Month: February 2022

Most efficient random integer generator by random bits consumed

February 23, 2022March 26, 2022

Discovered in 2013 by then-UPMC-student Jérémie Lumbroso, and independently re-discovered by an Apple programmer last Fall (with much ado on Twitter and Hacker News), the basic idea is as follows: Take your (infinite) random bitstream as the binary digits of random $r\in\left[0,1\right)$…

Posted in Writeups  •  No Comments on Most efficient random integer generator by random bits consumed

Clearing the DNS cache on Ubuntu 20.04

February 22, 2022March 8, 2022

Yeah, lots of people out there saying "leenucks doesn't have a dns cache!!1!" — well, recent versions of Ubuntu do ootb, and just restarting NetworkManager doesn't clear it for some ungodly reason… flush it with sudo systemctl restart systemd-resolved

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A very tiny bitmap font

February 15, 2022November 9, 2022

Could be useful for very small LCD displays, or for fitting an entire movie script on your monitor at once. TODO: convert to OpenType Bitmap…

Posted in OC  •  1 Comment on A very tiny bitmap font

mcomix system-level requirements

February 14, 2022May 28, 2023

Say you don't want sweeping system changes for something idiosynchronous like an unstable build of a comic book viewer…

Posted in How-To  •  No Comments on mcomix system-level requirements

X25519 original specification

February 12, 2022June 11, 2023

Adapted from the original specification

Posted in [DRAFT], Writeups  •  1 Comment on X25519 original specification

The "real way" to run X11 apps as another local user

February 9, 2022October 24, 2022

xhost +SI:localuser:$someoneElse

Posted in How-To  •  No Comments on The "real way" to run X11 apps as another local user

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