Stardew Valley's long-awaited multiplayer is finally here, and while it's still in beta, it's already pretty darn great. Developer Eric Barone (aka ConcernedApe) is in the process of smoothing out kinks and integrating features and changes suggested by players, and I reckon Nexus modder CatCattyCat has a winning suggestion on their hands.
Their new quality of life mod (which you can download here) lets you copy multiplayer invite codes to your clipboard and easily paste them into messages to your friends, which is much better than typing or saying the whole dang thing one character at a time. Here's a look at the mod's easy-to-use interface, which is accessed via the "Show Invite Code" menu (clipboard icon by Oomps62):
You'll need to be in Stardew Valley's multiplayer beta to use the mod, naturally, and you'll also need the beta version of SMAPI, Stardew's go-to mod loader. From there, just download CatCattyCat's mod and place it in your mods folder. You can find more detailed mod installation instructions in this handy wiki guide. For more on how to get the most out of the beta, check out Lauren's guide to multiplayer.