1. Install

sudo mpm install --release=R2026a --destination=/usr/local/MATLAB/R2026a MATLAB


2. Small fix

https://archive.archlinux.org/packages/g/gnutls/gnutls-3.8.9-1-x86_64.pkg.tar.zst

mkdir -p /tmp/gnutls_extract
tar -I zstd -xvf ~/gnutls-3.8.9-1-x86_64.pkg.tar.zst -C /tmp/gnutls_extract
sudo cp -d /tmp/gnutls_extract/usr/lib/libgnutls.so* /usr/local/MATLAB/R2026a/sys/os/glnxa64/

rm -rf /tmp/gnutls_extract

3. Activate

sudo /usr/local/MATLAB/R2026a/bin/glnxa64/MathWorksProductAuthorizer

4. Run

/usr/local/MATLAB/R2026a/bin/matlab