add draft of the first article

content/01_hello_world.adoc

+= Hello World OpenIMSd
+
+:date: 2024-10-04 01:23
+:tags: blog
+:category: blog
+:slug: 01-hello-world
+:authors: Alexander 'lynxis' Couzens <lynxis@fe80.eu>
+:summary: Hello world, an introduction to OpenIMSd
+
+Current free mobile phone OS (like postmarket OS, ...) only support voice calls
+for 2G and 3G on Qualcomm based devices.
+Calls via 4G using VoLTE are not supported (*except CSFB, which redirects to 2G/3G)
+because the modems require a lot of addional configuration.
+
+We will document the relevant APIs and add support to libqmi in the near future.
+Further we will implement a IMS configuration daemon which will communicate with
+the baseband using QMI (Qualcomm MSM interface) to configure the relevant services
+to allow the usual apis to function.
+
+..todo:: What we want to archive?
+
+..todo:: What is our focus?
+
+..todo:: How do we want to start?