Tracking Query Execution Statistics in PostgreSQL

NEW 4 min
There is a fantastic extension in PostgreSQL for capturing query performance statistics, including total time, mean time, and the number of calls. It is an invaluable tool to keep track of which statements are consuming the most CPU time and to identify slow queries.

Increasing Node.js Memory Limit

4 min
When keeping a large amount of data in memory (as in, ≥ ~1.4GB) you will probably hit the default limit for the old generation space in the heap, FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - JavaScript heap out of …

Modifying Nix Packages

2 min
There are a lot of already written Nix package definitions covering the most commonly used applications in Linux and macOS. However, for some reason or another, from time to time, you may wish to install a package with a …


8 min
The Free and Open Source Developers Meetup takes place yearly, on a weekekend between the last weeks of January and the first of February. It gathers about ten thousand open source developers and enthusiasts on Université …

Longest Increasing Subsequence

8 min
The goal is to build the longest subsequence of sorted numbers from a given sequence that can be in any order. For each number in the original sequence you can either choose to have it in the subsequence or not. Once you …