LeifAndersen

$ ffmpeg -list_formats 1 -i /dev/video1
ffmpeg version 4.1.3 Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 5.5.0 (Homebrew gcc 5.5.0_4)
  configuration: --prefix=/home/linuxbrew/.linuxbrew/Cellar/ffmpeg/4.1.3_1 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=gcc-5 --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libtesseract --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --disable-libjack --disable-indev=jack --enable-libaom --enable-libsoxr
  libavutil      56. 22.100 / 56. 22.100
  libavcodec     58. 35.100 / 58. 35.100
  libavformat   

LeifAndersen

$ ffmpeg -f v4l2 -i "/dev/video1" out.mp4
ffmpeg version 4.1.3 Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 5.5.0 (Homebrew gcc 5.5.0_4)
  configuration: --prefix=/home/linuxbrew/.linuxbrew/Cellar/ffmpeg/4.1.3_1 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=gcc-5 --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libtesseract --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --disable-libjack --disable-indev=jack --enable-libaom --enable-libsoxr
  libavutil      56. 22.100 / 56. 22.100
  libavcodec     58. 35.100 / 58. 35.100
  libavformat 

LeifAndersen

$ ffmpeg -f v4l2 -i "/dev/video1" out.mp4
ffmpeg version 4.1.3 Copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 5.5.0 (Homebrew gcc 5.5.0_4)
  configuration: --prefix=/home/linuxbrew/.linuxbrew/Cellar/ffmpeg/4.1.3_1 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=gcc-5 --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libtesseract --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --disable-libjack --disable-indev=jack --enable-libaom --enable-libsoxr
  libavutil      56. 22.100 / 56. 22.100
  libavcodec     58. 35.100 / 58. 35.100
  libavformat 

LeifAndersen

This is pdfTeX, Version 3.14159265-2.6-1.40.19 (TeX Live 2018/NixOS.org) (preloaded format=pdflatex 2019.5.3)  3 MAY 2019 12:44
entering extended mode
 restricted \write18 enabled.
 %&-line parsing enabled.
**test.tex
(./test.tex
LaTeX2e <2018-04-01> patch level 5

(/nix/store/bj76s3fhfhxiwgvxj24b51hyva1di0dy-texlive-combined-2018/share/texmf/
tex/latex/base/article.cls

LeifAndersen

#lang scratch

(provide blue)
(define blue 42)

(define bind
  (parameterize ([current-load-relative-directory "/"])
    (syntax-binding-set->syntax
     (syntax-binding-set-extend
      (syntax-binding-set)

LeifAndersen

#lang scratch

(define-syntax-parser foo
  [(_)
   (pretty-write (syntax-debug-info this-syntax))
   #`(bar #,this-syntax)])

(define-syntax-parser bar
  [(_ orig)
   (pretty-write (syntax-debug-info #'orig))

LeifAndersen

#lang racket/load

(module A racket
  (require syntax/parse/define)
  (provide define-foo)
  (define-syntax-parser define-foo
    [(_ name body ...)
     #:with this-syntax (datum->syntax #'name 'this-syntax)
     #'(begin
         (define-syntax foo2

LeifAndersen

#lang scratch

(define (better-keyword-apply func args)
  (define-values (kws rest)
    (let loop ([args args]
               [kw '()]
               [rest '()])
      (cond
        [(null? args) (values kw rest)]
        [(keyword? (first args))

LeifAndersen

;; -*- mode: emacs-lisp -*-
;; This file is loaded by Spacemacs at startup.
;; It must be stored in your home directory.

(defun dotspacemacs/layers ()
  "Configuration Layers declaration.
You should not put any user code in this function besides modifying the variable
values."
  (setq-default
   ;; Base distribution to use. This is a layer contained in the directory

LeifAndersen

#lang racket/base

#|
   Copyright 2016-2018 Leif Andersen

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0