Merge pull request #257 from CharlyCst/next

Add Miralis to newletter

Author: phil-opp

content/this-month/2025-05/index.md

@@ -44,6 +44,7 @@ In this section, we collect recent updates to `rustc`, `cargo`, and other toolin
   - (optional) Some additional context
 -->
 
+- [Miralis, a RISC-V virtual firmware monitor](https://github.com/CharlyCst/miralis)
 
 ## `rust-osdev` Projects