"Query and update data structures from the command line. Comparable to jq/yq but supports JSON, TOML, YAML and XML" (ib., 2020-11-05)
"interactive multitool for tabular data. It combines the clarity of a spreadsheet, the efficiency of the terminal, and the power of Python, into a lightweight utility which can handle millions of rows with ease" (ib., 2020-05-04)
"looks at the YAML metadata in a markdown file and runs pandoc for you" (ib. 2018-09-26)
"converts all posts, pages, taxonomies, metadata, and settings to Markdown and YAML which can be dropped into Jekyll"
"static site generator that's geared towards building project documentation. Documentation source files are written in Markdown, and configured with a single YAML configuration file."