On my macOS High Sierra your MWE works fine. Although I remember that I didn't use Homebrew, but had to build zint manually.

From log:

optional > using library '/Users/monty/context/tex/texmf-osx-64/bin/lib/luametatex/zint/libzint.so'
Here it is enough that
libzint.so be a link:

libzint.so -> /usr/local/lib/libzint.2.10.0.0.dylib

Delete the texmf-cache and run ./mtxrun --generate again, once you've made this link (or copied libzint.2.10.0.0.dylib to $TEXROOT/tex/texmf-osx-64/bin/lib/luametatex /zint/libzint.so)
image.png


Greetings,
L. Montgomery
PD.- Does zint-qt work well?

El dom, 10 abr 2022 a las 8:49, Keith McKay via ntg-context (<ntg-context@ntg.nl>) escribió:

Hi All

I have been struggling today trying to setup and use the Barcode module zint in ConTeXt and failed. I have followed the instructions on the wiki ( https://wiki.contextgarden.net/Barcodes ) but with some changes as follows. Which maybe why I failed.

1) I downloaded Zint using Homebrew since I'm using macOS, and installed it according to the instructions.

2) Since I'm using LMTX I looked for the file libzint.dylib and found it in /opt/homebrew/Cellar/zint/2.10.0/lib . This is different from the path given on the wiki. The directory contained three files, two of which were aliases,  libzint.2.10.dylib and libzint.dylib, and an exe file libzint.2.10.0.0.dylib

3) I created the path $TEXROOT/tex/texmf-osx-64/bin/lib/luametatex/zint and copied libzint.2.10.0.0.dylib into but replaced dylib with 'so' as suggested on the wiki instructions. So I basically added lib/luametatex/zint to texmf-osx-64/bin .

4) I ran mtxrun --generate to update the database.

5) I ran the MWE below but no barcode appeared. The console output shows:

modules > using user prefixed file 'libs-imp-zint'

modules > 'zint' is loaded

however further down the output it gives:

optional > unable to locate library 'libzint'

I have tried renaming libzint2.10.0.0.so to libzint.so, but still no barcode. Is their something I am missing? Tips or hints appreciated.

Best Wishes

Keith McKay

%%%%%%%%%%%%%% MWE %%%%%%%%

\usemodule[zint]

\starttext

\barcode[alternative=isbn,text=9783865419026,width=4cm]

\barcode[alternative=isbnx, text=9783865419026, width=4cm]

\barcode[alternative=qrcode, text={https://wiki.contextgarden.net}, width=3cm]

\stoptext

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