any text can be included in the reaction together with the custom emoji but client devs would need to add support for that. usually reactions are +, -, a unicode emoji or a custom emoji and people will use those most of the time so not sure if any dev will implement what you want although the protocol allows it. i'm not currently involved in nostr client development, sorry I can't help you :nostopus_crying:
DEAR @ODELL PLEASE HELP ME TO SPREAD MY IDEA. CUSTOM EMOJIS ACT LIKE LINKS TO REACTIONS ITS THE SAME WAY WHEN A USER ZAPS WITH A LINK. 👻 IMAGINE THE OUTCOME N HOW ADDICTIVE THAT COULD BE FOR BOTH SIDES! nostr:nevent1qqs8mn5wr83rv668cnr4w72n2am4fq37czpxxhr0yas4fr7s8x2hcqqpp4mhxue69uhkummn9ekx7mqzypl62m6ad932k83u6sjwwkxrqq4cve0hkrvdem5la83g34m4rtqegqcyqqqqqqg2ga5dc
MULTIPLE CLIENTS ALREADY SUPPORT THIS INCLUDING AMETHYST AND DAMUS. PRIMAL WILL PROBABLY ADD SUPPORT SOON.
ONLY FEW CLIENTS SUPPORT CUSTOM EMOJIS. WHAT I'M ASKING FOR IS CUSTOM EMOJIS THAT CAN LINK TO AN NIP-23/YOUTUBE TOGETHER IMAGINE IF YOU'VE RECEIVED THIS CUSTOM MADE BABY CHICKEN 🐣, BUT IT INCLUDED AN ARTICLE OR YOUTUBE LINK WHEN YOU CAN VIEW YOUR REACTIONS
I'M NOT ALONE, OTHER CREATORS LIKE THIS IDEA nostr:nevent1qqsyzc30uklfa6xftmck4dlpxsfaggg96m9n274dyntpkl5jfdk69wcpr3mhxue69uhkxunewp6x7am0d3nzumn0wd68yvfwvdhk6tczyzyx00ke86yuj0gd3tyckfzrc4250x0dhyvsx355dvfwq0cnvez9qqcyqqqqqqgexg5z4