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Last active May 15, 2024 05:24
OpenKey Harmonic Mixing System

How to Use OpenKey Harmonic Mixing Notation

Used by Native Instruments Traktor and other DJ/Music software (open alternative to Camelot, which is functionally equivalent to OpenKey)

  1. Key Labels: The notation uses a combination of a number and a letter. The number indicates the key's position in the circle (from 1 to 12), and the letter indicates the mode: m for minor and d for major.
jasonm23 / emacs.desktop
Created April 25, 2024 02:50
Emacs desktop application launcher file
[Desktop Entry]
GenericName=Text Editor
Comment=Edit text
Exec=sh -c "if [ -n \\"\\$*\\" ]; then exec emacsclient -a emacs -n \\"\\$@\\"; else exec emacs; fi" dummy %F
jasonm23 /
Created February 27, 2024 09:03
Recreate /boot/efi/EFI after accidentally deleting the EFI partition
jasonm23 / install emacs from
Last active March 11, 2024 08:22
Emacs v29 install from source on Ubuntu/Mint
sudo apt build-dep emacs
sudo apt install libgnutls28-dev \
libgtk-3-dev libwebkit2gtk-4.1-dev gnutls \
libgccjit0 libgccjit-10-dev libjansson4 libjansson-dev \
gnutls-bin libtree-sitter-dev gcc-10 imagemagick libmagick++-dev \
libwebp-dev webp libxft-dev libxft2
export CC=/usr/bin/gcc-10 && export CXX=/usr/bin/gcc-10 && ./ && ./configure --with-native-compilation=aot && \
make -j$(proc) && /
jasonm23 /
Last active September 8, 2023 13:26
Learning Elixir

Learning Elixir

Elixir is a versatile programming language known for its unique features and capabilities. Here are some key areas where Elixir truly shines:

  1. Concurrency and Parallelism: Elixir's concurrency model is based on lightweight processes that are isolated and can run concurrently. These processes communicate through message passing, allowing developers to build highly concurrent and scalable systems.

  2. Fault Tolerance: Elixir is built on the Erlang virtual machine (BEAM), which is known for its robust fault tolerance features. Processes can crash independently without affecting the overall system, thanks to supervision trees and supervisors that automatically restart failed processes.

  3. Scalability: Elixir's processes are lightweight, making it easy to scale applications horizontally. This scalability is crucial for building systems that can handle a large number of concurrent connections, such as web servers and real-time applications.

Left truncate on long pathnames in an llvm-cov HTML report.

Usage: $0 report_root_path source_starts_at_dir

For example the absolute, root path to a file.


Will left truncate with a leading elipsis:

jasonm23 /
Last active August 26, 2023 04:04
Levenshtein Distance Algorithm in plain english

Levenshtein Distance Algorithm in plain English

Inputs: Two strings s and t.

Goal: Calculate the minimum number of single-character edits (insertions, deletions, or substitutions) required to transform string s into string t.

  1. Initialize the Matrix:
    • Create a matrix dp with dimensions (len(s) + 1) x (len(t) + 1).
    • Initialize the first row with values 0 to len(t) and the first column with values 0 to len(s).
jasonm23 /
Last active August 26, 2023 04:40
Dijkstra's A* Algorithm in plain english

Dijkstra's (A*) Algorithm in plain English

Inputs: A graph or grid where each node represents a location and has associated costs, and a start node and a goal node.

Goal: Find the shortest path from the start node to the goal node while considering the associated costs and heuristics.

  1. Initialize Open and Closed Sets:
    • Create an open set containing the start node. This set represents nodes to be evaluated.
    • Create an empty closed set. This set represents nodes that have already been evaluated.
jasonm23 /
Last active August 26, 2023 04:01
Myers Diff Algorithm in plain english

Myers DIFF Algorithm in plain English

Inputs: Two sequences, often represented as strings, let's call them A and B.

Goal: Find the shortest edit script that transforms sequence A into sequence B. An edit script is a sequence of operations like insertions, deletions, and substitutions.

  1. Initialize the Matrix:
    • Create a matrix with rows representing the characters of sequence A and columns representing the characters of sequence B.
    • The matrix will have dimensions (M+1) x (N+1), where M is the length of sequence A, and N is the length of sequence B.
jasonm23 / github-actions-mode.el
Created August 16, 2023 09:24
Emacs github-actions-mode
;;; github-actions-mode --- Minor mode for github-actions
;;; Commentary:
;;; Used to add actionlint flycheck checker and github environment var names
;;; Code:
(require 'flycheck)
(require 'company-dabbrev)