AndrewKvalheim

Personal Mastodon instance

Effective total cost: $3–5/mo

Setup

Decide on an EC2 instance type:

1. At AWS Console → EC2 → Instance Types, filter for ≥1 GB RAM and sort by price.

• t4g.micro is lowest.

AndrewKvalheim

Create the Dokku instance:

vagrant up

Configure SSH (see how to enable ~/.ssh/config.d):

vagrant ssh-config --host 'dokku' > ~/.ssh/config.d/dokku

AndrewKvalheim

;;; Non-interactively save all selected regions as separate files
(define (script-fu-export-selected-regions image drawable)
  ;; Start
  (gimp-image-undo-group-start image)

  ;; If there are selections
  (when (= 0 (car (gimp-selection-is-empty image)))
    (let ((number 1) (prefix "") (suffix ""))
      ;; Construct filename components
      (let* ((parts (strbreakup (car (gimp-image-get-filename image)) "."))

AndrewKvalheim

GNU C Library locale definition derived from en_US with aspirational changes:

• SI units
• 24-hour time
• IETF RFC 3339 dates
• ITU-T E.164 international phone numbers
• ten-digit dialing domestic phone numbers
• weekbeginnings instead of weekends

AndrewKvalheim

_: pkgs:
let
  unstable = import <unstable> { overlays = [ ]; };
  overrideUntilVersion = p: v: (if pkgs ? ${p} && pkgs.lib.versionAtLeast pkgs.${p}.version v then pkgs else unstable).${p};
in
builtins.mapAttrs overrideUntilVersion {
  aws-sam-cli = "1.52.0";
  darktable = "4.0.0";
  efficient-compression-tool = "0.9.1";
  kitty = "0.25.2";

AndrewKvalheim

#!/usr/bin/env bash
set -Eeuo pipefail

[[ "$(gsettings get org.gnome.shell disable-user-extensions)" == 'true' ]] || exit

case "$(notify-send --urgency 'critical' --icon 'extensions' \
  'Extensions have been automatically disabled.' \
  --action 'enable=Re-Enable' \
  --action 'settings=Settings…')" \
in

AndrewKvalheim

#!/usr/bin/env bash
set -Eeuo pipefail

if [[ ! ( "${1-}" =~ ^([-_[:alnum:]]+)/([-_.[:alnum:]]+)$ ) ]]; then
  echo "Usage: ${0##*/} <owner>/<repo>" >&2
  exit 1
fi

owner="${BASH_REMATCH[1]}"
repo="${BASH_REMATCH[2]}"

AndrewKvalheim

To use the JOSM Scripting Plugin on NixOS, replace OpenJDK with GraalVM:

josm.override { jre = graalvm17-ce; }

AndrewKvalheim

#!/usr/bin/env bash
set -Eeuo pipefail

sudo --validate

concurrently \
  --names 'apt,docker,node,ruby,rust' \
  --prefix-colors 'yellow,blue,green,red,cyan' \
  'sudo apt-get update && sudo apt-get upgrade --yes' \
  'docker system prune --force --volumes' \

AndrewKvalheim

1. Remove waypoints and imprecise points with [GPSBabel]:

   gpsbabel \
     -i 'gpx' -f 'original/2021-08-23T21-35-41Z Mary Avenue Trail.gpx' \
     -x 'nuketypes,waypoints' \
     -x 'discard,hdop=2' \
     -o 'gpx' -F '/tmp/2021-08-23T21-35-41Z Mary Avenue Trail.gpx'