Hi, Sord did not have the `sord_validate` binary (which is needed for `lv2_validate` from the lv2 package to function properly). I looked it up and apparently it needs pcre to build: https://gitlab.com/drobilla/sord/-/blob/master/wscript#L211 I have verified that adding pcre as an input now produces sord_validate in /bin. Thanks, Alex