Catching up on an earlier thread by Ursula and Hraban, I'm also experienceing problems with \usemodule[zint] while \usemodule[t-zint] works fine. Running on macOS (ConTeXt ver: 2024.04.01 08:59 LMTX fmt: 2024.4.28). The issue seems somewhat unrelated to ConTeXt on first glance (??) if this is helpful. My code stopped working after I updated the OS (to Sonoma) and my homebrew cellar (to zint 2.13.0) while keeping a ConTeXt version from 2022 which compiled the barcodes perfectly fine before these updates. This being said, the newer ConTeXt version doesn't resolve the issue. Observations: 1) Zint (and Inkscape) is in my PATH and correctly sym-linked as specified in the wiki (~/tex/texmf-osx-64/bin/lib/luametatex/zint/libzint.so http://libzint.so/). However, the library was (still) not fount after mtxrun --generate [This seems an odd, but unrelated problem] 2) So, I hardcoded libfile in libs-impzint.lmt to local libfile = "/usr/local/Cellar/zint/2.13.0/lib/libzint.dylib" 3) Running the wiki example: \usemodule[m-zint] \starttext \barcode[alternative=isbnx, text=9783865419026, width=4cm] \barcode[alternative=qrcode, text={https://wiki.contextgarden.net}, width=3cm] \barcode[alternative=maxicode, text={test}, width=3cm] \stoptext * With \usemodule[m-zint], I correctly get: zint --barcode=qrcode --output="zint-qrcode-495165e08dbc5ce650aaaf13caa2229f.eps" --input="zint-qrcode-495165e08dbc5ce650aaaf13caa2229f.tmp" zint --barcode=maxicode --output="zint-maxicode-098f6bcd4621d373cade4e832627b4f6.eps" --input="zint-maxicode-098f6bcd4621d373cade4e832627b4f6.tmp" [Barcodes show up as expected] * With \usemodule[zint], no success: optional > using library '/usr/local/Cellar/zint/2.13.0/lib/libzint.dylib' zint > something went wrong: invalid result vector zint > something went wrong: invalid result zint > something went wrong: invalid result vector Maybe this is helpful to pinpoint the issue? Best Ben