| AboutCitrus Hack is the oldest24 hour hackathonhosted by theAssociation for Computing Machinery (ACM)at the University of California, Riverside (UCR), bringing together students from all backgrounds to build, learn, and create.Hackers (participants) build in teams of 1-4 to design and develop projects across software, design, hardware, data, games, AI/ML, and more, to present to a panel of judges to compete for tracks, challenges, and prizes.As one of Southern California's and the Inland Empire's largest hackathons, Citrus Hack aims to toprovide a welcoming environment and spacefor curiosity in exploring passions, creativity in innovating, and increasing accessibility in resources.Throughout the weekend of April 18-19, 2026, hackers will have direct access to hands-onworkshops, engagingactivities,mentorshipfrom industry professionals and faculty, andconnectwith peers across interdisciplinary fields.Citrus Hack is theoldest hackathon at UC Riverside(alongside our sibling hackathon, Cutie Hack) with10+ years of innovation and building(est. 2014). Our mission is to expand access to technical, professional, and community opportunities while empowering students of all discplines to build innovative and meaningful projects.This year, Citrus Hack is partnering withnewsponsors and partnersto provide even more resources, learning opportunities, networking sessions, and industry experiences for our participants (partners will be announced soon). We're excited to welcome you toCitrus Hack XIand for all the amazing projects!| Key InformationALL PARTICIPANTSareREQUIREDto register and be accepted through our website:citrushack.com, along with submitting the GitHub repository link to be considered for one of our tracks.|Connect with Us: Our PlatformsCore links:citrushack.com(website) • Discord TBA • All Links •citrushack@gmail.com(email)Socials:@citrushack_ucr(Instagram) •citrushack(LinkedIn)More opportunities:acmucr.carrd.co(ACM) •linktr.ee/cutiehack_ucr(Cutie Hack - our sibling hackathon)| Get Started: Registration, Submission, & Judging RequirementsRegister:All participantsmust register(and be accepted) atcitrushack.comand on our DevpostForm a Team:Teams can have 1 to 4 membersPlan Your Project:This year, we have10+tracks(see submission requirements). You and your team are free to build your project around these tracks, but we highly encourage having it be planned around this year’s theme -TBA!Build:Start coding once hacking kicks off onApril 18 at TBA! All projects must bestarted and completedduring the 24 hour periodUse GitHub:Your codemust behosted on GitHub. Ensure that all commits are time stamped during the hackathon window to qualify for judging and to be considered for our tracksSubmit Your Project:Turn in your project through Devpost and our website (citrushack.com)'s participant portal by the deadline. Scroll below for the precise submission requirements!Judging:Majority of your teammust be present in personto pitch your project to judges onApril 19at TBA. Be ready to present your project and answer questions from judges