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xkr47 /
Last active Nov 11, 2019
Simple calculator in language, with support for time durations & base 2..36

Example session:


Result: 5₁₀


Result: 5,00:00:00 = 5.000000 days
         120:00:00 = 120.000000 hours
xkr47 / doodle.css
Last active Sep 24, 2019
Fix Doodle to use full screen width and to stop resetting the horizontal scrolling when scrolling "outside" the vote table
View doodle.css
.d-pagesContainer {
max-width: unset !important;
.d-expandableScrollContainer {
overflow: visible !important;
background: white;
max-width: unset !important;
width: unset !important;
#d-participationPage #d-metadataView .d-pollMetadataRow, #d-participationPage #d-metadataView .d-pollHiddenButton.d-silentButton {
View flowdock.css
/* make notifications darker - suitable for dark theme */
.msg-body {
color: #585860;
.comment-group-hover .msg-body {
color: #9090a0;
/* just restore default theme colour that gets overridden by the above for normal messages */
.msg-body > p, .msg-body ul {
xkr47 / message.js
Last active Aug 23, 2019
keybase ephemeral message test
View message.js
// rendition of a message "test" set to expire in 30 seconds, as retrieved by json api after "exploding":
// $ keybase chat api -p -m '{"method": "read", "params": {"options": {"channel": {"name": "keybasefriends", "members_type": "team", "topic_name": "general", "pagination": {"num": 1}}}}}'
"msg": {
"id": 52853,
"conversation_id": "0000d5ba71470610a40b4d32af53a52775cc561589525d7b21bad9ec057b6aac",
"channel": {
"name": "keybasefriends",
"public": false,
"members_type": "team",
xkr47 /
Last active Jul 29, 2019
Focusrite Scarlett Linux support 2019-07-29

Focusrite Scarlett Linux support 2019-07-29

1st gen <2012

  • Solo
  • Studio
  • 2i2
  • 2i4
  • 6i6 1235:8012 since Linux 3.19
xkr47 / jsonmap
Last active Oct 26, 2018
My perl-based `jq` replacement
View jsonmap
echo -n '{"a":5,"b":7}' | jsonmap -r '$_->{"a"}." and ".$_->{"b"}'
# usage: $0 [options] <perlcode> [<inputfile>]
# reads json from stdin/inputfile, or if -R given, reads whole input as a string
# perlcode gets the json/string as a perl object in $_
# return object from perlcode is encoded as json to stdout, or passed as-is if -r given
# pretty-printed by default, -c for compact
# all input/output is in UTF-8
xkr47 /
Last active Sep 11, 2018
Handy script for generating a github "diff" url between two refs


$ github-diff origin/master 04ed4b

Requires the commits to be available locally, so you might have to git fetch first.

xkr47 / ot-poi.txt
Last active Jun 9, 2019
Handy queries for Overpass Turbo -
View ot-poi.txt
// Handy search for POI objects - just swap `shop=kiosk` out for any `key=value` osm tag
xkr47 / gulpfile.js
Last active Aug 17, 2017
Simple gulp debug transform
View gulpfile.js
var gt = require('through-gulp');
.pipe(gt(function visitFile(file, enc, cb) {
console.log("file '" + file.path + "' contents: " + file.contents.toString());
cb(null, file);
}, function visitEnd(cb) {
console.log("No more files");
xkr47 /
Last active Aug 9, 2017
Logitech TrackMan Marble FX scroll wheel patch for the Linux kernel

Logitech TrackMan Marble FX scroll wheel patch for the Linux kernel

This patch alters the usbmouse kernel driver to support a "scroll wheel mode" using the fourth button (the red button) when connected through a "ID 04d9:1400 Holtek Semiconductor, Inc. PS/2 keyboard + mouse controller" usb-to-ps2 adapter. No idea how things work with other adapters.

It seems the fourth button generates events, but the state of the button is not represented in any bits (at least by said usb-to-ps2 adapter).

However since "no buttons pressed" is only ever reported when releasing a single button being pressed, detecting multiple "no buttons pressed" events can be used to identify usage of the fourth button.

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