Nette - global variables in Latte (https://quip.com/1DAjAVxx9gZ8)

config.neon

// app/config/config.neon
parameters:
    globals:
        appVersion: v1.0.0

services:
    nette.latteFactory:
        class: App\LatteWithGlobalVariables
        setup:
            - addGlobals(%globals%)

LatteWithGlobalVariables.php

<?php

namespace App;

use Latte\Engine;

class LatteWithGlobalVariables extends Engine
{
    private $globals = [];

    public function addGlobals(array $globals)
    {
        $this->globals = $globals;
    }

    public function render($name, array $params = array())
    {
        return parent::render($name, $params + $this->globals);
    }
}