Two weeks ago I updated DOjS, the Javascript IDE/runtime for MS-DOS.
https://github.com/SuperIlu/DOjS/releases/tag/v1.110

This is the version DOStodon, my Mastodon client is based on.

• Added port of https://github.com/DhrBaksteen/ArduinoOPL2 to jsboot/
• Added optional OnExit() callback
• Fixed input callback detection
• Fixed mouse when using DOSBox-X and DOSBox-staging
• Fixed on screen garbage when creating a Bitmap with black background color
• Added GetEnv()
• Updated to mbedTLS 2.28.5
• Updated cURL to 8.4.0
• Added a minimal port to Linux
• Added micromod MOD playback plugin
• Added ibxm MOD, S3M and XM playback plugin
• Added a very simple OPL2 VGM player
• Added ByteArray post data in curl.DXE
• Added MIME type for post data in curl.DXE
• Added GetDrive() (DOS INT21, 19h) and SetDrive() (DOS21, 0Eh)
• Added WebP decoding/encoding