diff --git a/README.md b/README.md
index 4c77f74..ab05368 100644
--- a/README.md
+++ b/README.md
@@ -1,24 +1,30 @@
 # Packaging dmpd
 
-This is mostly regular package except recent addition of rust to used languages.
+This is rust package using *vendor* file for dependencies.
 
-## rust-tools
-
-To build the rust-tools (`make rust-tools`) one needs:
+To build the package following tooling is needed:
 
 - rust >= 1.35
-- cargo with vendor subcommand (now upstream, included in latest Fedora and RHEL8)
+- cargo with vendor subcommand (now upstream, included in latest Fedora and RHEL8+)
 
-### cargo vendpr
+## cargo vendor
 
-- run `cargo vendor` in the disrectory with sources
+- run `cargo vendor` in the directory with sources
 - run `tar czf device-mapper-persistent-data-vendor-$VERSION.tar.gz ./vendor`
 - copy the file (if version changed) and run the *fedpkg new-sources* command:
     - `fedpkg new-sources v$VERSION.tar.gz device-mapper-persistent-data-vendor-$VERSION.tar.gz`
+- some dependencies (at the moment only *rio*) are not using upstream from
+  registry, but a patched version. **After** running cargo vendor apply patch
+  *0001-Tweak-cargo.toml-to-work-with-vendor-directory.patch* so build does not
+  try to connect to internet. This dependency is being replaced by supported
+  crate.
 
 ## TODO/NOTES
 
-Some of the dependencies may be already packaged by Fedora. Can we instruct *cargo vendor* to include only those which are not provided by Fedora?
+Some of the dependencies are already packaged by Fedora. Can we instruct *cargo vendor* to include only those which are not provided by Fedora?
+It would be possible to include these as submodules, and the rest could be used from Fedora.
+For RHEL and CentOS Stream using vendor file is the recommended way.
 
-*%cargo_install* installs by defualt in */usr/bin* but the package expects */usr/sbin*. For now I run *make install-rust-tools*.
+*%cargo_install* installs by default in */usr/bin* but the package expects */usr/sbin*. For now I run *make install-rust-tools*.
+Now Fedora unified the */usr/sbin* and */usr/bin* directories, to this can be "fixed" in Fedora and later in CentOS Stream.