texlive-lang-japanese binary package in Ubuntu Focal arm64

 Support for Japanese; additional packages are in collection-langcjk.
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 This package includes the following CTAN packages:
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 ascmac -- Boxes and picture macros with Japanese vertical writing support
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 babel-japanese -- Babel support for Japanese
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 bxbase -- BX bundle base components
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 bxcjkjatype -- Typeset Japanese with pdfLaTeX and CJK
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 bxghost -- Ghost insertion for proper xkanjiskip
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 bxjaholiday -- Support for Japanese holidays
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 bxjalipsum -- Dummy text in Japanese
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 bxjaprnind -- Adjust the position of parentheses at paragraph head
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 bxjatoucs -- Convert Japanese character code to Unicode
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 bxjscls -- Japanese document class collection for all major engines
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 bxorigcapt -- To retain the original caption names when using Babel
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 bxwareki -- Convert dates from Gregorian to Japanese calender
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 convbkmk -- Correct platex/uplatex bookmarks in PDF created with hyperref
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 endnotesj -- Japanese-style endnotes
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 gentombow -- Generate Japanese-style crop marks
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 haranoaji -- Harano Aji Fonts
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 haranoaji-extra -- Harano Aji Fonts
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 ifptex -- Check if the engine is pTeX or one of its derivatives
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 ifxptex -- Detect pTeX and its derivatives
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 ipaex -- IPA (Japanese) fonts
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 japanese-otf -- Advanced font selection for platex and its friends
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 japanese-otf-uptex -- Support for Japanese OTF files in upLaTeX
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 jlreq -- Japanese document class based on requirements for Japanese text
 layout
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 jsclasses -- Classes tailored for use with Japanese
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 lshort-japanese -- Japanese version of A Short Introduction to LaTeX2e
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 luatexja -- Typeset Japanese with Lua(La)TeX
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 mendex-doc -- Documentation for Mendex index processor
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 morisawa -- Enables selection of 5 standard Japanese fonts for pLaTeX +
 dvips
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 pbibtex-base -- Bibliography styles and miscellaneous files for pBibTeX
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 platex -- pLaTeX2e and miscellaneous macros for pTeX
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 platex-tools -- pLaTeX standard tools bundle
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 platexcheat -- A LaTeX cheat sheet, in Japanese
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 plautopatch -- Automated patches for pLaTeX/upLaTeX
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 ptex -- A TeX system for publishing in Japanese
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 ptex-base -- Plain TeX format for pTeX and e-pTeX
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 ptex-fontmaps -- Font maps and configuration tools for
 Japanese/Chinese/Korean fonts with (u)ptex
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 ptex-fonts -- Fonts for use with pTeX
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 ptex-manual -- Japanese pTeX manual
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 ptex2pdf -- Convert Japanese TeX documents to PDF
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 pxbase -- Tools for use with (u)pLaTeX
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 pxchfon -- Japanese font setup for pLaTeX and upLaTeX
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 pxcjkcat -- LaTeX interface for the CJK category codes of upTeX
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 pxjahyper -- Hyperref support for pLaTeX
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 pxjodel -- Help change metrics of fonts from japanese-otf
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 pxrubrica -- Ruby annotations according to JIS X 4051
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 pxufont -- Emulate non-Unicode Japanese fonts using Unicode fonts
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 texlive-ja -- TeX Live manual (Japanese)
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 uplatex -- pLaTeX2e and miscellaneous macros for upTeX
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 uptex -- Unicode version of pTeX
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 uptex-base -- Plain TeX formats and documents for upTeX
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 uptex-fonts -- Fonts for use with upTeX
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 zxjafbfont -- Fallback CJK font support for xeCJK
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 zxjatype -- Standard conforming typesetting of Japanese, for XeLaTeX

Source package