postinstall.js

import { exec } from "node:child_process";

switch (process.platform) {
    case "darwin":
        exec("find ./node_modules/crypto-api/src/ \\( -type d -name .git -prune \\) -o -type f -print0 | xargs -0 sed -i '' -e '/\\.mjs/!s/\\(from \"\\.[^\"]*\\)\";/\\1.mjs\";/g'");
        break;
    default:
        exec("find ./node_modules/crypto-api/src/ \\( -type d -name .git -prune \\) -o -type f -print0 | xargs -0 sed -i -e '/\\.mjs/!s/\\(from \"\\.[^\"]*\\)\";/\\1.mjs\";/g'");
}

switch (process.platform) {
    case "darwin":
        exec("sed -i '' 's/<div id=snackbar-container\\/>/<div id=snackbar-container>/g' ./node_modules/snackbarjs/src/snackbar.js");
        break;
    default:
        exec("sed -i 's/<div id=snackbar-container\\/>/<div id=snackbar-container>/g' ./node_modules/snackbarjs/src/snackbar.js");
}

switch (process.platform) {
    case "darwin":
        // Space added before comma to prevent multiple modifications
        exec("sed -i '' 's/\"es\\/index.js\",/\"es\\/index.js\" ,\\n  \"type\": \"module\",/' ./node_modules/jimp/package.json");
        break;
    default:
        exec("sed -i 's/\"es\\/index.js\",/\"es\\/index.js\" ,\\n  \"type\": \"module\",/' ./node_modules/jimp/package.json");
}