With the help of this application you can develope your own Homebrew right on your PSP!At the moment you can write LUA-scripts with the editor and with the help of codesnippets. And of course you can safe them.

Changes:

-now compatible with PSP Slim and PSP Fat
-improved menu-function
-increased the horizontal menu
-added tons of codesnippets for all different luaplayers
-insert your own commands
-insert your own presets
-insert your own functions
-added presets
-added functions
-fixed filebrowser bug
-fixed OSK
-fixed scrolling
-loading previous saved files works now
-improved saving files
-added editable config.cfg

http://www.neoflash.com/forum/index.php/topic,4948.0.html