Celo 🛠 Building dApps for Real World Use Cases

foreign [Music] I'm from the seller blockchain cell Foundation sorry and I hope to lead the developer relations team so excited to be here at our third youth global hackathon first let's talk a little bit about cello in case you don't know um how many people don't know about solo right now how many have never heard of it one two three Okay cool so those uh a a project that uh started a couple years back and we really want to talk today about helping build daps for Real World um to solve real world problems I'm here with the team myself Anna Daniel we are at the very bright yellow booth um in the main stage area so today I'm going to talk about what cello is what's the future for the project um jump straight into bounties because a lot of people want to know what those bounties are I'm going to show a new project uh very excited to talk about this project and then go into a little bit more detail on the additional the additional bounties if you have any questions I will try to speed through these to answer questions but if if I don't get to that come see us first again what is solo what we look at Sellers a place to build with purpose and we want to build for all and what we mean by that is truly just like everybody here trying to build for the entire world um the difference with cello is uh we started uh several years back uh launched a token in a carbon uh carbon neutral manner um back before it was popular but now everybody's doing it and we're very happy to hear that we were launched back on Earth Day and there have been several projects that have launched on cello involving things like Ubi um this is where everybody gets a little bit of uh some tokens every single day they come in and claim it projects running that right now on cello are called impact market and good dollar there's also the concept of natural capital-backed currencies so people locking up parts of a forest things like that um a lot of this stuff has been built on cello and if you're looking to build a company that touches these things it's a great place to get started some of the features cello is in L1 we recently had a proposal on the Forum to uh to convert to an L2 and what that means it's very complicated but really making that change um makes a lot of sense considering when seller launched there wasn't you know ethereum was still proof of work and so launches proof of stake and it's been evm compatible but it would be great to come back home to the theorem community a lot of things that were built also were around mobile first so in Solo first launched one of the pitches was sort of like a crypto venmo and we've I think we've evolved past that point where everybody has a mobile device everybody's using all sorts of mobile wallets and so um uh cello the seller team also built some technology around phone number mapping so one of the great features that I like about building on solo is I may not know your wallet but if I know your phone number I can in many cases escrow some funds or I can send it to a phone number to be um to be transferred to at some point when you connect a phone number other features to think about quick finality can do high throughput but it really says that um I think we can handle quite a large bit and I'll share this near the middle part of my presentation you can also pay with your transaction fees and stable coins so if you have let's say you are sending some tokens to a phone number and you send them a stablecoin like cusd they can pay for gas with that cusd not require the cello based token so it's a lot of good things for again helping people get started uh like many projects decentralized Community governed we actually have a hard Fork happening on I'll talk about this in a little bit happening in a couple days and it's going to make every transaction fully uh carbon negative so very excited about that kind of stuff and if you're interested in more of these things um you know feel free to take a look at solo.org so yeah we're looking to we're looking to talk about um an L1 you know uh changing from L1 to L2 is a very big a very big leap but uh again the time the time is right I think the examples I made are on phone numbers escrowing and all that's great ultralight clients also a really big opportunity and with the shift to L2 a lot of this needs to be discussed in the community and if you're a part of it you know you're welcome to share your opinions recently uh the polygon team posted um their proposal uh polygon ZK just to be specific posted their proposal in the Forum um sharing their thoughts on how cell L2 could transpire and it's actually pretty exciting to see more people getting involved so a little bit more why would you build on the project lots of people building using it lots of wallets um there are lots of organizations driving keeping um the project um kind of focused on the core values I had mentioned things like carbon offsets we can go a little bit more detail there and then there's tons of projects lots of transactions there are a or is a very large ecosystem of people building I would say we need a little a little yellow circle there for for each Global New York in case any of you are building on solo this uh hackathon but excited to see the community grow lots of different projects building on solo some of these are projects that you um we've either partnered with or working with that you may know and um there's also a lot of businesses that have been that partner with solo to reach as many people as possible so very excited about that in terms of ecosystem refi regenerative finance a lot of the development that people have done have tried to bring on things like you know trying to bring carbon offsets in trying to bring regenerative Finance in and if you're interested in this uh this path let's talk one project is called climate Collective which is a help a a funding mechanism to help people who are or projects that are building in that space raise the funding and funding and capital that you need to grow a team as I mentioned earlier Ultra green is um our upcoming hard Fork there's a you know there's this project called ultrasound money um everybody's inspired by other projects but we launched Ultra Green Dot money and that keeps track of how much of the offsets and on Tuesday the actual switch goes on and every transaction from that point on will be offsetting through either toucan or carbon path so very excited about these things and um again something to think about one of the interesting things with this change is there is actually an 80 of the gas is going to be burnt and then 20 is going to be put into offsets so it's like um I'm no Economist but a deflationary model is very intriguing for many reasons and the I think having the carbon offsets as a part of it um will do really really well especially with some of the new launches that just have come up if you're here you're a developer your product person marketing coming up with ideas and you want to get your idea out there there's a lot of Partners you can be using to to launch your project you have we have inferior lava quick node um and then if there's projects that you want to utilize take a look at impact Market good dollar um there's also a cross-chain messaging so hyperlane shout out to them they also have a bounty in case you are trying to stack um and I don't know if any of the other uh crushing folks are here there's also or a chain link live on solo and a couple other oracles depending on what features that you need in terms of stable coins you can utilize cusd Euro real and um if you're looking for defy we have uniswap and you know several other Sushi swaps several other options for in terms of wallets there is uh the velor which was built by some teams that help to build the protocol and then launch the wallet there's metamask um of course you just add it into your browser your wallet very easy if you looking for Explorer as you're building ether scans on solo but it's called celoscan so take a look at solar scan or the native explorer.sello.org which is built on block Scout so running into running into some of the bounties which I think most of the time should be spent on we're going to be offering three top prizes we're looking for the best projects that align a lot with with what I showed earlier so if you if your eyes ideas are kind of there and you want to nudge it a little bit this is a great chance for you to win a potential prize and then we're also adding another bounty on top of this which is around building for real world use cases and I'm going to Showcase mini pay in a second if you're also looking at building for account attraction um we on testnet we have um third web has launched and deployed their sdks for for test net and so happy to help you folks there so quickly I want to talk about mini pay it's really exciting project launched by Opera and if you're building for a real world example this is a bounty that you should sign up for I'm gonna play a quick video this was announced uh just last week so super exciting stuff anyway there's some audio of if y'all can play it that's good that's it okay cool how many few of the people here have heard of Opera browser very cool so the great thing about the Opera Mini browser is actually a lot of traction in um in Africa so large number of users in Africa I'm gonna try to skip this sorry um so let's run through some of these benefits so super simple wallet built on Android I got an Android phone got Android phone right here um they're rolling out to users right now and it's primarily focused on payments and so um I don't know you know when I was getting prepared for my slides I was thinking how do I get people excited about this huge opportunity for building for several million people about to be on this in this wallet and if that gets you excited you know come chat with us but I'm I hopefully don't need to connect all the dots for you there's a lot of really good opportunity the wallet is self-custody transaction fees are very low as you see here ngn is Nigerian uh currency that they're that they're using for folks who are in are in Nigeria um and then the first um they also provide those folks access to stable coins so it can be helpful for people that are trying to you know decide what to do with their with their money they also do operating not us this is not cello Foundation this is or the selling system this is the Opera team also provides some free mobiles sorry some free mobile data which is very helpful for folks who in some regions depending on where you live or where you're from can be it can be very expensive to to do large Trend large um uh to visit lots of websites or heavy websites so they help to subsidize that there's also mobile notifications and so as you're building for your application think about like what would I want to do to push alert to you know I don't know 20 000 of my my dap users think that way and you have a really really powerful opportunity so that's a project it's called mini pig you can actually download um the the beta from the app store right now and when I'm looking when we're looking for projects ideas that you folks may have that fall into these categories if they do I think you have a strong chance of winning a bounty um projects like personal finance stablecoin yield um I am not an accountant or lawyer so you need to do your own homework there um Merchants you know B2B or just using things like if you had a very simple user interface that had like a couple buttons I don't know let's say one or two what could you get people to do to help them try out your D5 protocol um and finally or a little bit more detail how about a gift card idea a grab app you know something that kind of puts everything all in one place someone's going to build it it could be you um it could be payment control for families so I've got kids so maybe I want them to do maybe they want to buy something but I'm like you know I would give you a loan you have to pay me back I'm That Kind of dad I guess um and then what about payment splitting amongst friends micro work is a very big opportunity for folks to do things it could be you know virtual work it could be uh bro you know in person real life work um keeping track of things around assets or expense approvals and things like that you know um some of these things may seem more businessy but there's a very big opportunity again because of the size of people that are coming in so one project I came up with again I didn't talk to the lawyers so it'll get mad at me um but I built this project and I'm gonna open I mean it's just putting it up online it's built off of our uh very simple to to build uh dap uh framework called cello composer and it's really simple the idea is people can just play put their name in um a little bit of money is set aside and then at some point in the future using a provably or verifiably provable random randomization function um they could win so I'm going to quickly switch to that just to show this let's see first off let me show you mini pay so this is my wallet and uh and here's my obviously I've been working on it here's my dab super simple um it's just it's a very simple like wag me wrapper so it's not that hard I just have the concept of allowing people to um I want people to play the game within and if you want access to this this is a beta feature so in in the discovery page there's a test Dev section so I'm going to be testing this today for a live demo because that's always exciting um so I'm going to run both of the projects at the same place and the concept is I what the way I want this to work is people from their phone I need to of course improve the user interface here but I want them to just be able to tap and play someone connect my wallet here um very very straightforward I'll chip in a bit um and this should update to I don't know 40 something 41.41 solo that's the prize and then in a perfect world this will update but maybe it won't today this project is is meant to be just a example of solo composer cello composer is a great way to get started really quickly got hard hat integrated it's actually a fork of um scaffold so but built for solo and added a bunch of features around mobile development oh my God updated so um that this is a quick project I want to show you folks and I will show it this is a link to the project I'll show a link to um to the to the project in case you folks want to actually check it out oh here it is so super easy come see me if you actually want to play with it and if you're interested in actually building for mini pay getting started on the project um thank you um if you're interested in building for the project this is the one to scan oh oh so here's some of the notes so yeah one of the things is with many pay you want to hide your connect wallet yeah oh my what about all the other wallets right yeah just imagine if you got rid of that how much easier it would be if you just started with your wallet so that's some of the simple things and it's not that hard to do some some checks if you're interested in mini pay scan this you'll get invited to a WhatsApp group and then we'll I'll onboard you folks very quickly into um the uh building for for mini pay and I actually think if this hackathon isn't the time you build for it um this is a great opportunity but even if you build a small thing imagine if you could deploy it to several million users um very very soon sell the composer you can go to our docs.

sello.org here's another link just to sell a composer itself um I will talk briefly I'm going to run through these um you can find everything on docs.cello.org just go sell a composer but if you want to build for a kind of abstraction again think about if you had access to millions of of folks all over the world and you wanted to build something that made it easy to onboard upon abstraction makes a lot of sense we've worked with third web to support their their sdks I won't run through all these just because I'm running out of time um but quite easy to add in the just jumping straight to here quite easy to add in a kind of traction with solo composer again it's just like scaffold but updated for for solo for the solo community um and if there's other projects other projects that are available on the seller Network that you folks may be interested in using um you know this is our third hackathon we've been at so we know that you folks are going to try to select every single box here's some of our friends and you know please look at their look at their work for the bounties how we're going to judge it if you're building from mini pane you have access to that and you can put your app inside that and show it to us check check for me if you have AAA working on Alpha horse testnet it'll work I think that will count um you get extra points if you run from on Mini pay not every feature is available so it's still beta and then need to see your contract deployed in awful horiz follows all the rest of the youth Global rules and just come demo it to our our section if you need tokens um this is our test net address for for the faucet if you need mainnet tokens come see me Anna or Daniel and we'll give you a little bit to get started because exchanges take a long time so that's it from me my name is Eric um excited to see you folks build on cello and thank you