How to upgrade Mozc in my Ubuntu 21.04 to the latest build from Github?

I just bumped into this issue myself. tl;dr good news: it's already fixed few months ago in official git source codes. Bad news: latest version of Mozc available for Ubuntu 21.04 in it's repositories is 2.26.4220.100+dfsg-4ubuntu3 with the version that contain the fix is 2.26.4472.100, so straight sudo apt update && sudo apt upgrade does not help.

I'm trying to dig into official docs for building Mozc in Docker environment, but my knowledge of Ubuntu is lacking to replace present Mozc system with the new one, and I can't find proper guidelines for it in official docs, neither in other answers that mostly address Mozc installation for older versions of Ubuntu from official apt repository.

I would appreciate a lot if anybody could give a bit more detailed steps for building and replacement this system from github sources, without waiting for official repository.

Mặc dù tôi không thể tìm ra cách đóng gói phiên bản mozc mới nhất, nhưng tôi thấy rằng Anthy hoạt động tốt với Anki và gần như giống hệt về mặt chức năng với mozc. Chỉ cần:

sudo apt-get cài đặt ibus-anthy

Sau đó, trong cài đặt, hãy thêm tiếng Nhật > tiếng Nhật (Anthy) làm phương thức nhập liệu.