Is it possible to link 2 Homey's 2019?

[Henk_Renting]

Yes, You might want to take a look here:

[APP][Pro] Homesh Controller & Homesh Satellite - Connect Homey Pro 2023 to Homey Pro for Led, Speaker, Zwave(satellite) and network resource

If you want the development of two Apps to connect two Homey Pro’s, one as Controller and one as Satellite (for it’s LED, Speaker, ZWave, Network resource, etc), click the Like button! Wauw, 99 likes! i guess the Apps are going public! They are Live: Homesh Controller [Large] Homesh Satellite [Large] Thanks @johan_bendz for the lovely icons and imagery! And thanks @Caseda for the excellent name! Hello all, With the news of the new Homey Pro Early 2023, there are so…

Alternatively, you could work with webhooks to connect devices/flows at each Homey:

Webhook tutorial

Been trying to connect two Homey’s at different locations (eg one at home and and one at the office) - the two Homey’s use the same account. IFTTT been unsuccessful due to the fact that IFTTT cannot log into (“Service”) multiple Homey´s. I’ve understand that Webhooks can be used. But (I’m frank and honest) I’m confused. Please, please, please: give me a tutorial, step-by-step, exactly do this-and-that on how to do Webhooks on my Homey! Eternal gratitude is guaranteed!