lo.calho.st

I recently stumbled across a post about some crazy optimization that clang does to divisions by a constant.

This might sound like a strong opinion, but I’m just going to put it out there: Python should make tzinfo mandatory on all datetime objects.

Recently, another student asked me to set up a PostgreSQL instance that they could use for some data mining.

Suppose you have to run some program with 100 different sets of parameters.

I recently consulted on a project involving embedded devices.

Diagnosing the problem.

The design of the current Internet is based on the concept of connections between “hosts”, or individual computers.

I pose this question in quite a literal sense.

This morning, I received an email from my VPS host notifying me that they will no longer accept PayPal.

Today, I wrote gitply – a fairly simple Python script for visualizing the weekly activity of each contributor to a git repository.

Databending is a type of glitch art wherein image files are intentionally corrupted in order to produce an aesthetic effect.

As you probably know, PEM is a base64-encoded format with human-readable headers, so you can kind of figure out what you’re looking at if you open it in a text editor.

Let’s Encrypt is old news by now.

Introduction DES (Data Encryption Standard) is an old-school block cipher which has been around since the 1970s.

I first heard about Twilio a long, long time ago.

Authentication is the process by which a system determines whether a particular user is allowed to access it.

I often feel inclined to start new projects to avoid working on old ones.

The inotify API allows you to monitor a file or directory for various events such as file creation, modification, and deletion.

My current project is porting RIOT OS to the EK-TM4C1294XL evaluation board.

Dynamic DNS, or DDNS, is a type of DNS configuration which allows hosts with dynamic IP addresses to automatically update their DNS records.

VPNs allow you to route your Internet traffic through an encrypted tunnel to a remote server, enhancing your privacy while online.