Creating and converting documents is not trivial. I have a bunch of links that have helped me before.

writing-papers

• easy-lecture-slides-made-difficult-with-pandoc-and-beamer-andrew-goldstone
• Pandoc- How can I get numbered LaTeX equations to show up in both PDF and HTML output - TeX - LaTeX Stack Exchange
• pandoc-about-pandoc
• user-contributed-templates-jgmpandoc-wiki-github
• write-good-papers-daniel-lemires-blog
• ‘Don’t write—just type,’ and more advice from author Daniel Mendelsohn - PBS NewsHour

Latex

• andrewjpagecom
• art-of-problem-solving
• comparing-latex-conversion-tools
• ctan-maintenance-down-time
• CUED - Squeezing Space in LaTeX
• how-to-solve-latex-error-too-many-unprocessed-floats-federico-gobbo
• installing-create-a-local-texmf-tree-in-miktex-tex-latex-stack-exchange
• installing-how-can-i-manually-install-a–miktex-windows-tex-latex-stack-exchange
• latexalgorithms-wikibooks-open-books-for-an-open-world
• mackichan-software-the-home-of-scientifi-scientific-word-and-scientific-notebook
• macros-what-do-newcommand-renewcommand-a-do-they-differ-tex-latex-stack-exchange
• positioning-reproducing-an-official-letterhead-tex-latex-stack-exchange
• sectioning-subsection-starting-in-same-lsubsection-name-tex-latex-stack-exchange
• texfaq2html-redirect-emulating-cgi-bin-lookup-on-the-original-site
• Tufte-LaTeX

beamer presenations

• conversion - Any way of converting ppt or odf to beamer or org- - TeX - LaTeX Stack Exchange
• conversion - Export beamer slides to powerpoint-openoffice-impress-keynote editable format - TeX - LaTeX Stack Exchange
• https://www.soimort.org/notes/161117/

Linux

Folder Structure control

Joplin

• https://gitlab.com/charlescanato/google-keep-to-evernote-converter
• https://blog.jfx.ac/moving-notes-from-google-keep-to-joplin.html
• https://discourse.joplinapp.org/t/solved-importing-from-google-keep/1733
• https://gist.github.com/itsjfx/689ae620222240911a3efae33e313b1b

flatpak install flathub net.cozic.joplin_desktop

Turtl

• https://turtlapp.com/