update readme

README.md

@@ -1,50 +1,53 @@
-Sing Alongs
+# Sing Alongs
-===========
 
-[Latest Releases](https://code.vanwa.ch/sebastian/sing-alongs/-/releases)  
+A collection of songs to play and sing.
 
-Motivation
+## Motivation
-----------
 
 I love to play the tin whistle and around 2012 I was looking for some sheet
 music. There are a lot of good resources out there but the one thing I have
 never found was a collection which was free (as in freedom) and usable for
 printing. And if something does not exist why not try and create it yourself?
 
-At this point I discovered [Lilypond](http://www.lilypond.org/) a wonderful
+At that point I discovered [Lilypond](http://www.lilypond.org/) a wonderful
-project for music engraving. The best part is that it has support for embedding
+project for music engraving and I started building.
-its scores in LaTeX files so it is possible to get complex layouts without a
-big hassle. As a programmer I instantly liked the approach because I did not
-need a big editor but could just write text files which I then could manage
-with something like [git](http://git-scm.com/).
 
-Development
+## Building
------------
 
-Main development happens at https://code.vanwa.ch/sebastian/sing-alongs.
+Development happens at https://code.vanwa.ch/shu/sing-alongs.
 
-Take a look at the command list in the makefile to see what you need for building.
+### Prerequisites
+
+Either use the provided nix flake to take care of everything or ensure the
+following is installed:
+
+- [lilypond](https://lilypond.org)
+- a tex installation (for example [TeX Live](https://www.tug.org/texlive/)) with
+  the _pdfcrop_ and _pdfjam_ commands
+- [gnu make](https://www.gnu.org/software/make/) (might work with other makes,
+  never tested it)
+- _opusenc_ from [opus-tools](https://opus-codec.org/downloads/)
+- a sound font, for example
+  [Fluid](https://member.keymusician.com/Member/FluidR3_GM/index.html)
+- [timidity++](https://sourceforge.net/projects/timidity/)
+- _pdftocairo_ from [poppler-utils](https://poppler.freedesktop.org/)
 
 The makefile defines multiple targets:
 
-- pdfs: builds all songs as single pdfs (without lyrics for now)
+- opus: converts the song melodies to opus files for listening
-- midis: builds the midi file for each song
+- book: build a songbook as a pdf and additionaly generate a booklet fit for
-- opus: converts the midi files into opus files
+  double sided flip printing
-- book: concatenates the songs (with lyrics) to a songbook
-- booklet: converts the songbook to a booklet fit for double sided flip printing
 
 To build all just run `make` and it takes care of everything.
 
-License Stuff
+## License
--------------
 
-I am still not quite clear on how this works. My understanding is that all these
+My understanding is that all these songs already are in the public domain and
-songs already are in the public domain and there is no need to explicitly set a license.
+there is no need to explicitly set a license.
 
-All copyrights that could arise from other sides (makefile or whatever) are waived
+All copyrights that could arise from other sides (makefile or whatever) are
-under [CC0](https://creativecommons.org/publicdomain/zero/1.0/).
+waived under [CC0](https://creativecommons.org/publicdomain/zero/1.0/).
 
-Contact
+## Contact
--------
 
-You can reach me at [sebastian@vanwa.ch](mailto:sebastian@vanwa.ch)
+You can reach me at [shu@vanwa.ch](mailto:shu@vanwa.ch)

flake.nix

@@ -17,8 +17,7 @@
           with pkgs;
           mkShell {
             buildInputs = [
-              texliveSmall
+              texliveMedium
-              texlivePackages.pdfjam
               lilypond-with-fonts
               poppler_utils
               gnumake