Java-based IDEF0 & DFD Modeler
Install
Run in console
gradlew runLocal
Test the app
Tested in Ubuntu 20.04 and Fedora 34
Download repo
git clone https://github.com/Vitaliy-Yakovchuk/ramus.git
Move to folder
cd ramus
Execute command
./gradlew runLocal
Recommendation: Create an alias to launch the application
Open .bash_aliases file and add this line
alias ramus='cd ~/path/to/ramus/folder/ && ./gradlew runLocal &'
Just run ramus in the terminal to launch the application
Test the app