diff --git a/README.md b/README.md
index ad4ade0..91346e4 100644
--- a/README.md
+++ b/README.md
@@ -44,6 +44,8 @@ The following (mis?)-features have been added to `skymap` in the active
 
 # Build
 Development is done in Debian Bookworm (testing).
+Tested and working with Debian Bullseye (11/stable)
+Doesn't require any dependencies outside of Debian.
 
 ```
 sudo apt install giza-dev git make dos2unix source-extractor wcslib-dev \
@@ -62,6 +64,10 @@ Built files get put in the `bin/` directory.
 # Usage
 ```
 cd bin/
+./tleupdate
+
+# set config in ~/.bashrc XXX
+
 ./skymap --help
 Usage: skymap [OPTION]
 Visualize satellites on a map of the sky.