CLI wizard

Hyva:

composer config --auth http-basic.composer.yireo.com YOURDOMAIN YOURLICENSE
composer config repositories.yireo composer https://composer.yireo.com/
composer require loki-checkout/magento2-hyva loki-checkout/magento2-core-adminhtml loki-checkout/magento2-core-cli
 loki-checkout/magento2-csp
bin/magento module:enable `bin/magento module:status | grep -E 'Yireo|Loki'`
bin/magento hyva:config:generate
magerun2 config:set customer/address/street_lines 3

Rebuild the Tailwind build of your theme.

Luma:

composer config --auth http-basic.composer.yireo.com YOURDOMAIN YOURLICENSE
composer config repositories.yireo composer https://composer.yireo.com/
composer require loki-checkout/magento2-luma loki-checkout/magento2-core-adminhtml loki-checkout/magento2-core-cli
 loki-checkout/magento2-csp
bin/magento module:enable `bin/magento module:status | grep -E 'Yireo|Loki'`
bin/magento loki-checkout:modules:dump
magerun2 config:set customer/address/street_lines 3

cd vendor/loki-checkout/magento2-luma/view/frontend/tailwind/
npm ci
npm run build