sci-astronomy@gentoo.org Gentoo Astronomy Project Gasgano is a Data File Organiser developed and maintained by ESO to help its user community to manage and organise in a systematic way the astronomical data observed and produced by all VLT compliant telescopes, i.e. by telescopes which are being operated through Observation Blocks. The tool also supports FITS files which are not generated by those telescopes but with a limited number of functionalities.