If anybodys on Arch, if you place this PKGBUILD into the haveno extracted directory and run “makepkg -si” will convert the rpm to arch and install it.

pkgname=haveno-reto
pkgver=1.0.6
pkgrel=1
pkgdesc="Monero DEX"
arch=('x86_64')

depends=("bash" "java-runtime>=21")
optdepends=()

source=('haveno-1.0.6-1.x86_64.rpm')

sha256sums=('SKIP')

package() {
  find $srcdir/ -mindepth 1 -maxdepth 1 -type d | xargs cp -r -t "$pkgdir"
}