My repositories

• emacs configuration files for the One True Editor
• bashrc dotfiles for BASH
• scripts and configuration files for my overall command line environment (includes the above two as submodules) and lots of other stuff—e.g. configuration files for the awesome i3 window manager
• a collection of Bash tools and utilities
• project Euler solutions in JavaScript (Node.js)
• archetype projects starter / bootstrap projects and setups for various technologies (woefully uncurated and featuring many obsolete, even toxic approaches)
• A collection of OCaml utilities I put together and found useful when doing project Euler stuff in OCaml

JavaScript

games I've developed (tested on Chrome — should be played with sound for best experience)

• Using React:
  • Catch the Lion (click to play)
    • github repo for the main game
    • github repo for the AI library (based on the Minimax algorithm)
    Note: Around 2018 I released minmax-wt-alpha-beta-pruning which is a much improved (over the above version), generic (can be used with any game) implementation of the minmax algorithm that employs the alpha-beta pruning optimization. In contrast, the AI library for this game does not perform alpha-beta pruning and, most importantly, does not cleanly separate the minmax algorithm from the game rules and game state evaluation logic that's specific to this game. It also fails to quickly recognize victory end states and foolishly waits until all other game tree leaf nodes are evaluated (the alpha-beta optimization addresses that, among other things). Future games will be based on my new minmax library.
  • Stacks of grain piling and tumbling
    • github repo
  • Tetris game (click to play)
    • github repo
  • Minesweeper game (click to play)
    • github repo
• Using the Canvas API:
  • (Disavowed) space invaders game (click to play) (next: add ammo-packs, wave attacks and new weapon types)

other JS stuff

• Implementation and demo of the cubehelix algorithm (ReactJS)
• Towers of Hanoi (ReactJS)

What follows is a motley crew collection of TILs and notes that've accumulated, or rather hoarded, over the years and posted here for the benefit of my future self (and, as such, unlikely to be useful to anyone else).

HEALTH WARNING: Content below the red line is basically my scratchpad (i.e. uncurated and, at places, rotting).

Platforms

Linux:

• i3 window manager
• general
• admin, filesystems keyboard
• networking
• web-development-notes.html
• shell tricks & incantations
• git, svn
• LaTeX
• emacs

Relational Databases and SQL

Geospatial

• GeoServer

Theory

• Password hashing and salting

Web applications

XML specifications

Java

General Computer Science

Specific deployments / configuration notes

Travails

• Installing Ubuntu 20.04 on ThinkStation
• Building node from sources and setting up node and npm in Ubuntu 16.04
• Installing Ubuntu 16.04.4 64 bit on my Lenovo ThinkPad T510
• Installing Ubuntu 16.04 64 bit on my Lenovo ThinkPad T420 and setting up the machine
• JBoss AS 7.1 configuration
• Postgresql 9.1 configuration
• JNDI DataSource names in Glassfish
• configure Clojure Mode and Clojure REPL in Emacs
• the ClearCase abomination

Rabbit holes

Sui-generis notes:

• What every Programmer should know about Memory
• On the various definitions of time
• online SVG editor
• the Pythonic live-reload
• lscpu readings of my machines
• Double entry accounting method

Miscellaneous

• https://float.exposed (exposition of how floating point numbers work)
• beautiful math
• interesting articles that don't fit into other categories
• maps
• The fascinating topic of hyphens, en dashes and em dashes
• life hacks
• useful mental models, articulations and wise positions on software stuff
• Why of Y
• some acronyms I like to keep reminding myself
• list of free programming books, free online courses, etc.
• One Click to be Pro links (best resources per area)