Truncate blog posts and enforce from now on (#2689)

Author: jaimergp

blog/2025-11-21-gcc-macos.md

@@ -17,7 +17,7 @@ maintenance burden. There are two main incompatibilities. First,
 as the OpenMP library whereas `gcc` uses `libgomp` as the OpenMP library.
 
 Today, we announce the availability of `gcc`, `g++` compilers on macos.
-You can install them using
+You can install them using:
 
 ```bash
 conda install gcc gxx
@@ -26,6 +26,8 @@ conda install gcc gxx
 Currently we support only gcc 15 and will not support gcc 14 or previous
 versions.
 
+<!-- truncate -->
+
 The main difference between these packages and a vanilla gcc installation
 or the installation from Homebew is that they use `libomp` as the default
 OpenMP library and `libc++` as the default standard C++ library.

docusaurus.config.js

@@ -84,6 +84,7 @@ const config = {
           showReadingTime: true,
           blogSidebarCount: 10,
           onInlineAuthors: "ignore",
+          onUntruncatedBlogPosts: "throw",
           ...editUrl,
         },
         theme: {