The netbean's matisse GUI-builder won the audience price at the Jax 2007 conference in Wiesbaden.
This is interesting, because many participants are experienced eclipse users :-)
Web Apps, SPA, PWA with vanilla Java Script (ES 6+), CSS 3 and WebStandards only. As simple as possible, but not simpler. See you at: (Progressive) Web apps, Single Page Apps and WebStandards airhacks workshops at MUC airport, Winter Edition
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