Add some blog posts etc

Author: phil-opp

content/this-month/2024-12/index.md

@@ -33,6 +33,8 @@ Please follow this template:
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 - [This Month in Redox OS - December 2024](https://www.redox-os.org/news/this-month-241231/)
+- Video: [Intro to Embassy : embedded development with async Rust](https://www.youtube.com/watch?v=pDd5mXBF4tY)
+- [2025: The Year of COSMIC — Alpha 5 Released!](https://blog.system76.com/post/cosmic-alpha-5-released)
 - Funding Opportunities - with [Redox OS](https://redox-os.org/) or on your own
   - The NGI Zero Commons Fund and NGI Zero Fediversity Fund each have a call for proposals with a Feb. 1 deadline.
 If the proposal is successful, it would be to start roughly in June or July (based on our experience) and run for up to 12 months,
@@ -60,6 +62,9 @@ In this section, we collect recent updates to `rustc`, `cargo`, and other toolin
   - (optional) Some additional context
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+- [Improve default target options for `x86_64-unknown-linux-none`](https://github.com/rust-lang/rust/pull/134765)
+- [De-duplicate and improve definition of core::ffi::c_char](https://github.com/rust-lang/rust/pull/132975)
+
 ## `rust-osdev` Projects
 
 In this section, we give an overview of notable changes to the projects hosted under the [`rust-osdev`](https://github.com/rust-osdev/about) organization.