I wrote a more in-depth blog post about it[4]
[0] https://github.com/upscayl/upscayl [1] https://github.com/tesseract-ocr/tesseract [2] https://www.algolia.com/ [3] https://github.com/KlothoPlatform/klotho [4] https://www.alashiban.com/search-the-deck/