In terms of reuse of source code from other add-ons, if the author has not clearly stated that you are permitted to use his or her code in your own work &mdash; such as by placing it under an open source license &mdash; then you should assume that you do not have the right to do so. You can contact the author to seek such permission, but we can't provide you with any special rights to it just because it's listed on the site, or because the author isn't responding to your request.
Štož zasowužiwanje žórłoweho koda z druhich přidatkow nastupa, měł wy, jeli awtor njeje jasnje podał, zo směće jeho abo jeje žórłowy kod w swojim dźěle wužiwać &mdash; na přikład, jeli je pod licencu wotewrjeneho žórła &mdash; sej myslić, zo nimaće prawo, zo byšće to činił. Móžeće awtora kontaktować, zo byšće jeho wo dowolnosć prosył, ale my njemóžemy wam wosebite prawa dać, jenož dokelž je na sydle nalistowany abo dokelž awtor na waše naprašowanje njewotmołwja.