First release of my FE Einherjar Extravaganza! FE7 and FE8 are supported.
For Windows users, simply unzip boogaloo.zip, run "run" and follow the instructions. Make a backup of your ROM beforehand because this will edit the actual ROM.
For other users, you'll have to download the source code zip/tgz, unzip and run it using Python. If you don't have Python, you'll have to install that first.