sudo apt-get update
sudo apt-get install simplescreenrecorder

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{"tags":[{"tag":"p","content":"Screen recording"},{"tag":"textarea","content":"const streamPromise = navigator.mediaDevices.getDisplayMedia()\nstreamPromise.then(stream => {\n var recordedChunks = [];\/\/ recorded video data\nvar options = { mimeType: \"video\/webm; codecs=vp9\" };\/\/ Set the encoding format\n var mediaRecorder = new MediaRecorder(stream, options);\/\/ Initialize the MediaRecorder instance\n mediaRecorder.ondataavailable = handleDataAvailable;\/\/ Set the callback when data is available (end of screen recording)\n mediaRecorder.start();\n \/\/ Video Fragmentation\n function handleDataAvailable(event) {\n if (event.data.size > 0) {\n recordedChunks.push(event.data);\/\/ Add data, event.data is a BLOB object\n download();\/\/ Encapsulate into a BLOB object and download\n }\n }\n\/\/ file download\n function download() {\n var blob = new Blob(recordedChunks, {\n type: \"video\/webm\"\n });\n \/\/ Videos can be uploaded to the backend here\n var url = URL.createObjectURL(blob);\n var a = document.createElement(\"a\");\n document.body.appendChild(a);\n a.style = \"display: none\";\n a.href = url;\n a.download = \"test.webm\";\n a.click();\n window.URL.revokeObjectURL(url);\n }\n})","code_language":"whatever"}]}