MemeCTF serial exploitation to local file read to Papertrail access via API-token leakage and more

First of all a huge thank you for the great challenge you put up! I've found it super exciting and the learning curve has been steep.

HEROKU_EXEC_URL=https://exec-manager.heroku.com/ea0bc596-REDACTED
PHP_EXTRA_CONFIGURE_ARGS=--with-apxs2 --disable-cgi
APACHE_CONFDIR=/etc/apache2
PHP_INI_DIR=/usr/local/etc/php
SHLVL=1
PHP_EXTRA_BUILD_DEPS=apache2-dev
PORT=58345
PHP_LDFLAGS=-Wl,-O1 -Wl,--hash-style=both -pie …