Open source 'Barrier'-fork refuses to install on Windows 10 32 bit, lacking x86-binary?
Originel 'Symless Synergy'-software might support 32 bit versions of Windows (x86-binaries?), though is no longer freeware.
The freeware version of Synergy has been a great tool, for extending a single keyboard and mouse onto one or many auxilary laptops or pc's, running almost any Windows, Linux or other operating system. Unfortunately the original Synergy is less secure.
The user ought to build the 32 bit Barrier-binaries from source code manually. A much easier alternative seems to be the 'yupi2'-fork of Synergy
, which has both 64 bit as well as 32 bit Windows-binaries.
desktop estate expansion available in 64 bit and 32 bit looks promising as well: it even supports lcd-displays from smartphones. That seems to be restricted to a single operating system/single laptop/single pc though, communicating with many many screens from other systems.