Radoslaw Werszko is a Polish boat designer who has published his designs as open source. They are designed for home builders, are stitch and glue construction, and both the boats and plans are elegant. The boats also appear as though they would be quick and plane easily. I first found this designer through resources posted on intheboatshed. Gavin Atkin, thank you. Radoslaw teaches engineering graphics at the University of Technology in Wroclaw, Poland and is especially interested in inland vessels for extremely shoal waters. You can see the fruits of his labors and follow the progress of several of his builds at his website.
9 hours ago