Build on Vim’s spell checking and correction. Allows thesaurus substitution, instant dictionary completion and per-file/-environment spell language invocation (through functions, see README)

other spelling plugins:

• https://github.com/dbmrq/vim-dialect - persist zG/zW per-file or per-directory instead of loosing them after closing vim
• https://github.com/inkarkat/vim-SpellCheck - populate quickfix window w/ spelling errors
• https://www.reddit.com/r/vim/comments/9gkofj/storing_custom_spell_check_word_lists_in_git/ - when storing spellfile in vcs automatically rebuild in vim on starting so that it stays up to date

useful tips for configuring some spell-checker settings and mappings: https://www.reddit.com/r/vim/comments/41a3cw/better_way_of_doing_spellcheck/