Need to setup of VPS server and PHP customization: hostname : xxxxxxxxx.com domain : xxxxxxxxxxx.com required to have one live (www.xxxxxxx.com) and one devlopment site (www.dev.xxxxxxxxx.com) swap memeory of 6 GB Need to setup my VPS with Ubuntu 24.04 LTS + Pure Nginx Need to Install PostgreSQL 18 Need to Instal Roundcube webmail + converse.js Requirement : Custom XMPP/Converse.js Integration for Roundcube (Gmail-style Sidebar & Fullscreen UI) Project Overview: We are looking for an experienced PHP/JavaScript developer to integrate an XMPP chat client (Converse.js) into our Roundcube Webmail (Elastic skin). The goal is to replicate the Google Chat user experience within Gmail, where chat is a primary sidebar task that, when selected, takes over the main viewing area in a fullscreen, professional, corporate layout. Technical Requirements & Scope : Roundcube Sidebar Integration Add a custom Chat button to the Roundcube left-hand vertical navigation menu (Taskbar). The button must use a custom SVG icon (Google Chat style). Implement a "Task" switcher: When the Chat button is clicked, the Mail panels should be hidden, and the Converse.js fullscreen interface should be displayed in the main content area. Converse.js Configuration (Corporate/Google Style) View Mode: Must be set to fullscreen or embedded (not overlay boxes). Authentication: Implement XMPP Pre-binding via PHP. Users must be automatically logged into the chat server using their Roundcube session/credentials (SSO). UI Customization: Match the "Elastic" Roundcube theme. Apply a Corporate/Flat UI (remove shadows, gradients, and rounded chat bubbles). Primary color palette must be customizable via CSS variables (SASS/SCSS preferred). Features to Enable: Multi-user chat (MUC), file uploads (XEP-0363), chat history (MAM), and delivery receipts. Performance & Backend Transport: Configure the client to use WebSockets (WSS) instead of BOSH for lower latency. Responsiveness: The layout must be fully responsive, working seamlessly on mobile and tablet views within the Roundcube Elastic skin. screening question : "Have you ever implemented XMPP pre-binding in a PHP environment?" This filters out generic bidders. requirement: mail.xxxxxxxx.com should redirect to xxxxxxxxx.com/webmail but the URL should be shown to user is xxxxxxxx.com webmail.xxxxxxx.com should redirect to xxxxxxxx.com/webmail but the URL should be shown to user is xxxxxx.com admin.xxxxxxxxxx.com should redirect to xxxxxxx.com/10000 but the URL should be shown to user is xxxxxxxxx.com usermin.xxxxxxxx.com should redirect to xxxxxxx.com/20000 but the URL should be shown to user is xxxxxxx.com users : webadmin Location: webadmin:/home/tag/public_html/ /home/dev/public_html/ webadmin:/home/webmail (central location. so that can use for multiple locations)