feat: add notable community releases

Author: LDeakin

.vitepress/theme/custom.css

@@ -21,6 +21,25 @@ span.clip u {
     background-clip: text;
 }
 
+.announcement-pill {
+    display: inline-flex;
+    align-items: center;
+    border: 1px solid rgba(227, 75, 117, 0.35);
+    border-radius: 999px;
+    padding: 0.1em 0.55em;
+    background: rgba(227, 75, 117, 0.1);
+    color: var(--vp-c-brand-1);
+    font-size: 0.85em;
+    font-weight: 700;
+    line-height: 1.4;
+    vertical-align: 0.08em;
+}
+
+html.dark .announcement-pill {
+    border-color: rgba(229, 128, 119, 0.45);
+    background: rgba(229, 128, 119, 0.14);
+}
+
 /* Arborium dark mode for VitePress (.dark class on html) */
 html.dark a-at { color: var(--arb-at-dark); font-weight: var(--arb-at-dark-weight, normal); font-style: var(--arb-at-dark-style, normal); text-decoration: var(--arb-at-dark-decoration, none); }
 html.dark a-co { color: var(--arb-co-dark); font-weight: var(--arb-co-dark-weight, normal); font-style: var(--arb-co-dark-style, normal); text-decoration: var(--arb-co-dark-decoration, none); }

index.md

@@ -54,6 +54,9 @@ features:
 
 ### Announcements
 
+- <tt>2026/04/21</tt>: <span class="announcement-pill">Community</span> [`pizzarr` (R)](https://github.com/zarr-developers/pizzarr) 0.2.0 released: `zarrs` has been swapped in as the parallel backend.
+- <tt>2026/03/13</tt>: <span class="announcement-pill">Community</span> [`Zarrs.jl` (Julia)](https://github.com/earth-mover/Zarrs.jl) 0.1.0 released: a wrapper over the `zarrs` library by Joe Hamman from Earthmover.
+- <tt>2026/03/04</tt>: <span class="announcement-pill">Community</span> [`zarrs_n5` (Rust)](https://github.com/clbarnes/zarrs_n5) 0.1.0 released: [N5](https://github.com/saalfeldlab/n5) format support to the `zarrs` ecosystem by Chris Barnes.
 - <tt>2026/02/02</tt>: `zarrs` 0.23 released: improve performance and ergonomics, <tt>optional</tt> data type and codec, more flexible extension point support.
 - <tt>2025/09/18</tt>: `zarrs` 0.22 released: new extensions, initial generic indexing/WASM support, expanded experimental partial encoding.
 - <tt>2025/06/08</tt>: `zarrs` 0.21 released: several bug fixes and support for a number of additional data types.