content: news: Add OSC 2026 Hokkaido announcement

Add a news entry announcing our participation in Open Source
Conference 2026 Hokkaido in Sapporo on June 27, 2026.

Also mention the Zephyr Meetup in Sapporo planned for the previous
day.

Signed-off-by: Yasushi SHOJI <yashi@spacecubics.com>

Author: yashi

content/news/2026-04-09.en.md

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+title = "Space Cubics at Open Source Conference 2026 Hokkaido"
++++
+
+We will be participating in [Open Source Conference Hokkaido][1] again
+this year.
+
+See you in Sapporo on June 27, 2026!
+
+
+The day before, we are also planning to host [Zephyr Meetup: Sapporo, Japan][2].
+
+
+[1]: https://ospn.connpass.com/event/388639/
+[2]: https://zephyr-rtos.connpass.com/event/386410/

content/news/2026-04-09.md

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+title = "オープンソースカンファレンス 2026 Hokkaido に参加"
++++
+
+今年も [オープンソースカンファレンス Hokkaido][1] に参加します。
+
+2026年6月27日に、札幌でお会いしましょう!
+
+
+前日には [Zephyr Meetup: Sapporo, Japan][2] も開催予定です。
+
+
+[1]: https://ospn.connpass.com/event/388639/
+[2]: https://zephyr-rtos.connpass.com/event/386410/