diff --git a/README.md b/README.md
index 744428c..7ac3508 100644
--- a/README.md
+++ b/README.md
@@ -65,18 +65,22 @@ for extended font support.
 
 ## Using in gint
 
-**Disclaimer**: this is being worked on, but not implemented in gint yet.
-
-When converting the font with `fxconv`, pass the name of a folder containing
-block images instead of a simple image and set `charset` to `unicode`.
+To convert the font with `fxconv`, pass the name of a folder containing
+block images instead of a simple image and set `charset` to `unicode`. Note
+that in this setting, `area` is ignored and the same grid parameters are
+applied to all block images.
 
 ```sh
 % fxconv -f uf5x7/ name:uf5x7 charset:unicode grid.size:5x7
 ```
 
-When using the font, just call `dtext()` as usual and make sure the string is
-encoded as utf8. The `u8` prefix can be used if your source file is not
-encoded as utf8.
+When using the fxSDK, you can simply create a folder under `assets-fx` or
+`assets-cg` with the block files of your choice, for instance
+`assets-fx/uf5x7/U+0020.png`.
+
+To use the font, configure it with `dfont()`, then call `dtext()` as usual.
+Make sure the string is encoded as UTF-8. The `u8` prefix can be used if your
+source file is not encoded as UTF-8.
 
 ```c
 dtext(5, 5, "Mézalors Δ=2 ⇒ ∀x∈S, x⊆Δ", BLACK, WHITE);