You can build a parser with the sbt task fst:
sbt fst CORPUS [CONFIG_FILE]
This reads either the parser configuration in CONFIG_FILE or if not specified from the default fileconfiguration.properties, and compiles a SFST parser in parsers/CORPUS/greek.a.
You can use regular SFST tools such as fst-mor or fst-infl with this file. E.g., to Greek words you supply interactively, run
fst-mor parsers/CORPUS/greek.a
There is also an sbt task to apply your parser to a list of words read from a file with one word per line. The syntax is:
sbt parse CORPUS [WORDLIST]
If WORDLIST is not given, the task looks for a file named wordlist.txt.