Adjust/add install/build programs, add mpv config, clean up zsh config

install_programs.sh

@@ -13,6 +13,24 @@ apply_overrides() {
     [[ -z $name || -z $kind ]] && echo "zz_skip,zz_skip" || echo "$name,$kind"
 }
 
+build_custom() {
+    target=$(echo "custom_$BOX_SETUP_OS-$BOX_SETUP_DISTRO-$1" | tr '-' '_')
+    [[ ! -e ./installs_and_builds/$target ]] &&
+        target=$(echo "custom_default_$1" | tr '-' '_')
+    [[ ! -e ./installs_and_builds/$target ]] &&
+        echo "custom build/install script not found for: $1" &&
+        return
+
+    tmpdir=$(mktemp -d "${TMPDIR:-/tmp}/$1.XXXXXXXX") || {
+        echo "could not create temp dir for $1 build" && return
+    }
+
+    custom_script_path=$(pwd)/installs_and_builds/$target
+    pushd $tmpdir > /dev/null
+    $custom_script_path
+    popd > /dev/null
+}
+
 echo "---- updating package manager / packages"
 [[ -n "$BOX_SETUP_UPDATE_PKG_MANAGER_AND_DEFS_CMD" ]] &&
     ${=BOX_SETUP_UPDATE_PKG_MANAGER_AND_DEFS_CMD}
@@ -32,10 +50,7 @@ sed 1d "installs_and_builds/programs.csv" |
         [[ $name = 'zz_skip' || $kind = 'zz_skip' ]] && continue
 
         [[ $kind = 'package_manager' ]] && ${=BOX_SETUP_INSTALL_COMMAND} ${=name} || {
-            [[ $kind = 'build_custom' ]] && {
-                target=$(echo "custom_$BOX_SETUP_OS-$BOX_SETUP_DISTRO-$name" | tr '-' '_')
-                "./installs_and_builds/$target"
-            }
+            [[ $kind = 'build_custom' ]] && build_custom $name
         }
     done