Flexisheet was created to be a clone of Improv for Gnustep, but it was abandoned long ago. You could compiled the source. https://flexisheet-orphans.blogspot.c

Flexisheet was created to be a clone of Improv for Gnustep, but it was abandoned long ago. You could compiled the source. https://flexisheet-orphans.blogspot.com/2006/10/circa-2002-leuker-stefan-shared-beta.html https://flexisheet-orphans.blogspot.com/2006/10/circa-2002-l... Sourcecode : https://github.com/gnustep/gap/tree/master/user-apps/FlexiSheet https://github.com/gnustep/gap/tree/master/user-apps/FlexiSh... Review of alternatives: https://arstechnica.com/civis/viewtopic.php?f=20&t=546563 https://arstechnica.com/civis/viewtopic.php?f=20&t=546563