Add the same script for linux/osx.

PPP3/reset_build.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+set -e
+
+mv -f ./subprojects/packagecache .
+rm -rf subprojects builddir
+mkdir subprojects
+mv packagecache ./subprojects/
+mkdir builddir
+meson wrap install fmt
+meson wrap install sqlite3
+meson wrap install sqlitecpp
+meson wrap install ftxui
+meson setup builddir

PPP3/setup.sh

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+set -e
+
+mkdir builddir
+mkdir subprojects
+meson wrap install fmt
+meson wrap install sqlite3
+meson wrap install sqlitecpp
+meson wrap install ftxui
+meson setup builddir