Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
```
sudo apt install build-essential cpio git curl \
pkg-config libssl-dev \
- node-typescript inkscape bubblewrap
+ node-typescript inkscape bubblewrap \
+ netpbm
```
2. Install Rust. This is most easily done with [rustup](https://rustup.rs)):
--- /dev/null
+cards/src/*.gif
+cards/src/make-cards.massaged
--- /dev/null
+#!/bin/sh
+set -e
+
+cd library/cards-oxymoron/cards/src
+
+perl -pe <make-cards >make-cards.massaged '
+ s{^#! */usr/bin/perl}{$& -w};
+ print "sub xsystem { \$?=0; \$!=0; system \@_ and die \"$! $?\"; }\n"
+ if !m/\S/ && !$done++;
+ s{\bsystem\(}{x$&}g;
+'
+chmod +x ./make-cards.massaged
+./make-cards.massaged