add soapy remote to docker build, too

docker/scripts/install-dependencies-soapyremote.sh

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+function cmakebuild() {
+  cd $1
+  if [[ ! -z "${2:-}" ]]; then
+    git checkout $2
+  fi
+  mkdir build
+  cd build
+  cmake ..
+  make
+  make install
+  cd ../..
+  rm -rf $1
+}
+
+cd /tmp
+
+STATIC_PACKAGES="avahi"
+BUILD_PACKAGES="git cmake make gcc musl-dev g++ linux-headers avahi-dev"
+
+apk add --no-cache $STATIC_PACKAGES
+apk add --no-cache --virtual .build-deps $BUILD_PACKAGES
+
+git clone https://github.com/pothosware/SoapyRemote.git
+cmakebuild SoapyRemote 6d9bd820da470cfe7b27b2e6946af93cfece448f
+
+apk del .build-deps