Desktop Lazarus/fpc application in browser over the WEB - Knowledge
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lazarus / 38-Networking and Web Programming

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zgabrovski · 2021-05-12 07:08

I briefly share my experience with deploying a Lazarus/fpc desktop
application to work as a web-based browser application.

To achieve this I used vps hosting with a virtual server with 4
processor cores and 6 GB of RAM. The server was installed by the
hosting company with Ubuntu 20.04. server. It will cost around EUR 30
per month for the customer.

I installed the desktop GUI as described here:
https://phoenixnap.com/kb/how-to-install-a-gui-on-ubuntu
by selecting the xubuntu minimal (xfce) option.
I installed xrdp to access the already installed GUI as described here
https://linuxize.com/post/how-to-install-xrdp-on-ubuntu-20-04/
I installed Guacamole which is a RDP to HTML 5 gateway as described
here.
https://www.linuxbabe.com/ubuntu/apache-guacamole-remote-desktop-
ubuntu-20-04

I installed the Firebird and other libraries I needed for my
application.

I recompiled for Linux GTK 2 and installed the application.

I created an icon in the /usr/share/applications folder using a
.desktop file.

I created the necessary users using the adduser command.

and finally for the administrator: I downloaded scripts that can
monitor users and sessions from here

https://github.com/evanlinde/xrdp-who

The result is a working desktop application in a browser from anywhere
in the world and on any device.