Add usage instructions

README.md

@@ -2,6 +2,41 @@
 
 Below are archlinux packages from AUR or official archlinux repo with some new feature updates and upgrade to latest version
 
+### Usage
+
+Add repo to `pacman.conf`
+
+```bash
+sed -i "/[[]custom[]]/r /dev/fd/5" /etc/pacman.conf 5<<'CLIP'
+[balki-aur]
+SigLevel = Required
+Server = https://gitea.balki.me/api/packages/balki-aur/arch/balki-aur/$arch
+CLIP
+```
+Add repo key to pacman
+
+```bash
+curl -s "https://gitea.balki.me/api/packages/balki-aur/arch/repository.key" | pacman-key --add -
+```
+
+Get the key id of the added key. (the last one)
+```
+pacman-key -l | tail
+```
+
+Sign the key
+
+```bash
+pacman-key --init
+pacman-key --lsign-key LAST_KEY_ID_FROM_PREVIOUS_OUTPUT
+```
+
+All apps from [here][21], can be installed using pacman. E.g.
+
+```bash
+pacman -Syu phanpy-bin
+```
+
 #### Common changes
 
 1. pkgrel starts with `11`. Last digit corresponds to upstream pkgrel and tenth place is for my pkgrel.
@@ -103,3 +138,4 @@ AUR packages is orphaned
 [18]: https://gitea.balki.me/balki-aur/genson
 [19]: https://aur.archlinux.org/packages/python-genson
 [20]: https://github.com/wolverdude/genson
+[21]: https://gitea.balki.me/balki-aur/-/packages