diff --git a/content/posts/rmk-ferris-sweep/index.md b/content/posts/rmk-ferris-sweep/index.md
index 74f0ed7..9637534 100644
--- a/content/posts/rmk-ferris-sweep/index.md
+++ b/content/posts/rmk-ferris-sweep/index.md
@@ -39,9 +39,12 @@ cross referencing the schematic with the elite-pis [usage guide](https://docs.ke
 One stumbling block is that the Ferris sweep ran out of pins to use full-duplex UART, and therefore only uses half-duplex.
 To solve this, RMK supports (only on the RP2040) a PIO driver for half duplex, gated behind a crate feature in `cargo.toml`.
 With it, we can set our Tx and Rx pins to the same pin.
+In order to do this, however, I had to set the `rmk` dependency to a direct link to the Github repo,
+because as of the time of writing, the `rp2040_pio` feature had not made it into a release.
 
 After the painstaking process of tracing all the pins and putting them in the matrix, we can define the keymap.
 My [keymap](https://github.com/gabevenberg/qmk_firmware/blob/personal/keyboards/ferris/keymaps/almost_default/keymap.json)
 is a bit complex, so it took some time to port.
+It was mostly tedium rather than anything truly headscratching, however.
 
 The final file looked like [this](https://github.com/gabevenberg/ferris-sweep-rmk/blob/main/keyboard.toml)