Chrome and firefox no longer support NPAPI, on linux, so how can my local application be embedded in a web page?

1. As far as we know, IE on windows is implemented using AtiveX.
2.NPAPI is about to be abandoned, PPAPI Google is about to be abandoned, and there is no way to embed this plug-in model.
3. Now there are WebGL and other technologies to achieve complex rendering of web pages, but if I am a more complex application, using this technology to achieve web-server technology is not displayed, is there any good plan to embed local programs into the web page?

Dec.04,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b37dd8-4110b.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b37dd8-4110b.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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