gummi is a great text editor since it has continuous re-fresh. Can I link it to TeX instead of LaTeX? Here is why: Some commands only work with TeX and not LaTeX.
me@Lenovo:~/Documents$ latex test.tex This is pdfTeX, Version 3.14159265-2.6-1.40.16 (TeX Live 2015/Debian) (preloaded format=latex) restricted \write18 enabled. entering extended mode (./test.tex LaTeX2e <2015/01/01> Babel <3.9l> and hyphenation patterns for 2 languages loaded. ! Undefined control sequence. l.1 \cleartabs % Nullify any previous \settabs. ? x No pages of output. Transcript written on test.log.
Now let's try with TeX
me@Lenovo:~/Documents$ tex test.tex This is TeX, Version 3.14159265 (TeX Live 2015/Debian) (preloaded format=tex) (./test.tex  ) Output written on test.dvi (1 page, 544 bytes). Transcript written on test.log.
Gummi is open source so anything should be possible.