Considering that nearly all the tools that you are using are either Free Software or Open Source, you may want to also add to the pool of software by placing your editor / whatever into the open domain.
There are a variety of software licences that are available. The GPL or the GNU Public Licence is the most favoured free software licence. There are also other licences either termed Open Source or BSD style licences. If you are interested in the philosophy behind free software and other such esoteric subjects please visit the GNU Philosophy Page. Another interesting site that would be of interest would be ESR's website where some information on Open Source (as a different stream from Free Software) is available.
If you want other people to use your software, you will need to release in a fashion that is usable without too much of trouble. Apart from a simple format like .tar.gz consider creating a RPM or .DEB file.
Once you are done with enough testing to consider your editor stable enough, you may (at your own risk!) want to post it the grand daddy of all Linux/Unix software references. This is the venerable Freshmeat. In addition, you should maintain your own web page for the software with help, instructions and other general information (a photograph of you could be appropriate on the page, not in the software!)