diff --git a/README.md b/README.md
index 4866733..c53be8b 100644
--- a/README.md
+++ b/README.md
@@ -9,6 +9,7 @@ Consider this alpha-quality: While it works, *everything* is subject to change w
 1. Checkout: `git clone https://github.com/kennylevinsen/wldash`
 2. Build: `cargo build --release`
    If you want the Ivy calculator feature enabled (requires a Go toolchain): `cargo build --release --features ivy`
+   If you want the bc calculator feature enabled: `cargo build --release --features bc`
 3. Put somewhere: `cp target/release/wldash /usr/local/bin/wldash`
 4. Run: `wldash`
 
@@ -48,6 +49,8 @@ The launcher also accepts prefix operators to change its mode:
 - `!`: Arbitrary command
 - `=`: Calculator, currently requires the `ivy` feature. See https://godoc.org/robpike.io/ivy for documentation on the syntax and features.
 
+To display the launcher on all outputs export `WLDASH_ALL_OUTPUTS=1`
+
 ## Notable missing features:
 
 - Scaling of any kind - all sizes are currently hardcoded in pixels