It's not like these packages are super sophisticated million LOCs masterpieces. ansi-regex is literally just this:

    export default function ansiRegex({onlyFirst = false} = {}) {
 // Valid string terminator sequences are BEL, ESC\, and 0x9c
 const ST = '(?:\\u0007|\\u001B\\u005C|\\u009C)';

 // OSC sequences only: ESC ] ... ST (non-greedy until the first ST)
 const osc = `(?:\\u001B\\][\\s\\S]*?${ST})`;

 // CSI and related: ESC/C1, optional intermediates, optional params (supports ; and :) then final byte
 const csi = '[\\u001B\\u009B][[\\]()#;?]*(?:\\d{1,4}(?:[;:]\\d{0,4})*)?[\\dA-PR-TZcf-nq-uy=><~]';

 const pattern = `${osc}|${csi}`;

 return new RegExp(pattern, onlyFirst ? undefined : 'g');
}

   ... | wc -c
   592