Just as a note - in case people didn't notice the option - if you want it to use English instead of your system's locale, you can deselect the "Language Files" (aka translations) option when running the installer:
<img width="399" alt="geany_lang_inst" src="https://user-images.githubusercontent.com/181177/87252231-337f3f00-c426-11ea-93fa-621de12ed611.PNG">