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Mark O'Sullivan 🌎

@markos.dev
2.1K followers 230 following 965 posts

Building an alterantive to Airbnb alternative called Caza de Casa (cazadecasa.xyz) 🏡

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Mark O'Sullivan 🌎 @markos.dev · 29/09/2026
Vrbo commission fee increasing to 12% for hosts. Vrbo are also getting rid of their $499 a year subscription plan. This move is very similar to Airbnb who went from charging a 3% service fee to their hosts and 12% service fee to their guests to a single 15.5% fee to their hosts.
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Mark O'Sullivan 🌎 @markos.dev · 27/09/2026
The north of Spain is so beautiful
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Mark O'Sullivan 🌎 @markos.dev · 27/08/2026
The new page on a mobile web browser I love the exit animation which pushes a search off the page
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Mark O'Sullivan 🌎 @markos.dev · 26/08/2026
It's fun building cool things
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Mark O'Sullivan 🌎 @markos.dev · 21/08/2026
Buenos días ☕ Starting my Friday with a coffee on the beach
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Mark O'Sullivan 🌎 @markos.dev · 16/08/2026
Sleep walking in that location would not be fun 🤣
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Mark O'Sullivan 🌎 @markos.dev · 04/08/2026
The latest blog post that I published for the Caza de Casa blog about the Distrito Palermo in Medellín is appearing in the Images section in the results to a Google Search for "distrito palermo medellin" I've never had this happen before so it feels pretty cool
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Mark O'Sullivan 🌎 @markos.dev · 31/07/2026
Yesterday marked 3 years since I asked Geilys to be my girlfriend ❤️
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Mark O'Sullivan 🌎 @markos.dev · 28/07/2026
Check out the blog post
cazadecasa.xyz
Distrito Palermo - The $1 Trillion Megaproject in El Poblado
Find out what's being built, who's behind it, and what it means for El Poblado and the city of Medellín.
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Mark O'Sullivan 🌎 @markos.dev · 28/07/2026
The latest blog post is a winner
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Mark O'Sullivan 🌎 @markos.dev · 23/07/2026
Thanks for the heads up! Which service did you use?
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Mark O'Sullivan 🌎 @markos.dev · 23/07/2026
Either a custom service or dub.co
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Mark O'Sullivan 🌎 @markos.dev · 23/07/2026
The link did get uglier BUT I think I can fix that
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Mark O'Sullivan 🌎 @markos.dev · 23/07/2026
The UTM links look ugly I went deep down the rabbit hole of looking into how to make them nicer Which lead to me buying a domain for shortened links which will redirect to UTM links Not a priority right now but I thought the domain suited Caza de Casa well so went ahead and got it
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Mark O'Sullivan 🌎 @markos.dev · 22/07/2026
Finally started using UTM links to help me determine which WhatsApp groups are getting me the most amount of traffic Before it would have been showing as direct traffic instead of coming from whatsapp The links are a bit long and ugly but that can be fixed in the future with a URL shortener
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Mark O'Sullivan 🌎 @markos.dev · 16/07/2026
The only factor I could identify that was different was that March was one of the months I was most active on the Facebook page sharing 4 properties and 2 blog posts One thing I haven't been doing is tracking with UTMs which would help identify the cause of spikes a lot easier
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Mark O'Sullivan 🌎 @markos.dev · 16/07/2026
I spent time this afternoon looking at the total unique users for Caza de Casa the past 6 months A big spike in users during the month of March lead me down the rabbit hole of trying to identify if there was a particular reason for this
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Mark O'Sullivan 🌎 @markos.dev · 12/06/2026
"What's the best internet provider in Medellín?" Over the past 6 years Huw Rayner has tried and tested every major internet provider and can tell you who is the best and perhaps more importantly - which company to avoid. Read all in the blog 👇 cazadecasa.xyz/blog/medelli...
cazadecasa.xyz
I Tried Every Internet Provider in Medellín. Here's What Six Years Taught Me
Huw Rayner shares his honest experience with Claro, Tigo, Movistar and Somos after six years living in Medellín, and explains why he finally stopped switching.
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Mark O'Sullivan 🌎 @markos.dev · 10/06/2026
It's interesting to see that many startups don't have a high Domain Rating (DR)
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Mark O'Sullivan 🌎 @markos.dev · 09/06/2026
Earlier this month I had the first guest blog post on the Caza de Casa blog My plan is to have people share snippets of their experiences of what life is like in Medellín This first guest blog post compares the dental care to Florida in the US cazadecasa.xyz/blog/dental-...
cazadecasa.xyz
Dental Care: Florida vs Medellín
Miguel Cruz shares his experience of dental care in Medellín and compares it to the typical experience in Florida.
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Mark O'Sullivan 🌎 @markos.dev · 08/06/2026
What is Caza de Casa? An alternative to those looking for an apartment to rent in Medellín without needing to pay high service fees like those on Airbnb and Booking cazadecasa.xyz
cazadecasa.xyz
Caza de Casa: Furnished Apartments for Rent in Medellín
Rent a furnished apartment in Medellín with Caza de Casa, an Airbnb alternative with lower prices, no surprises, and no service fees.
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Mark O'Sullivan 🌎 @markos.dev · 31/05/2026
The Uneed launch day concluded and Caza de Casa finished #5 Why launch on Uneed? By submitting your product on Uneed earns you a dofollow backlink from a high domain authority site which helps improve your search engine ranking This should help Caza de Casa appear in more search & AI results
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Mark O'Sullivan 🌎 @markos.dev · 29/05/2026
42 upvotes and it's got 3 reviews (!) so far today on Uneed Thanks to everyone who's voted so far Hopefully Caza de Casa can get a few more before the day is finished
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Mark O'Sullivan 🌎 @markos.dev · 29/05/2026
Caza de Casa is launching today on Uneed I know it's still early in the day but it was really cool to see Caza de Casa in third place If you could find 2 minutes to give Caza de Casa an upvote today it'd be really appreciated 🫶
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Mark O'Sullivan 🌎 @markos.dev · 23/05/2026
This used a function to store the language selection and the page content was updated to whatever language was selected. Now we have a /es/ route for all the pages making it easier to share the site with Spanish only speakers.
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Mark O'Sullivan 🌎 @markos.dev · 23/05/2026
The landing page was already translated to Spanish but it was not setup with language routes and instead was changed only when the user tapped on the globe icon and selected a language.
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Mark O'Sullivan 🌎 @markos.dev · 23/05/2026
I recently added screenshots of Caza de Casa in to the Spanish app stores. But before I could publish them I needed add a link in the privacy policy page in Spanish. This wasn't possible with the existing setup for the landing page.
The home page for Caza de Casa in Spanish
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Mark O'Sullivan 🌎 @markos.dev · 12/05/2026
"If you're looking for a better value longer stay it's worth keeping an eye out on platforms like Caza De Casa (available on iOS & Android) who work with local hosts to minimise the booking fees associated with Airbnb and in turn pass on less expensive rates." I love reading shoutouts like these ❤️
A shoutout for Caza de Casa on holdall.work a travel blog which wrote about their experience in Medellín in Colombia
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Mark O'Sullivan 🌎 @markos.dev · 01/05/2026
Uber is following Airbnb in adding hotel bookings to their platform Uber and Expedia are partnering to offer over 700,000 hotels directly in the app “Uber is now an app for everything,” CEO Dara Khosrowshahi In June the Expedia app will offer Uber rides
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Mark O'Sullivan 🌎 @markos.dev · 18/03/2026
Nearly 2 years ago I got on a flight to move to Medellín. I've learnt a lot from my own experiences and hearing stories from others about renting in Medellín. What if you don't want to pay high prices on Airbnb? What options do you have? I reveal all below 👇 cazadecasa.xyz/blog/how-to-...
cazadecasa.xyz
How to Rent an Apartment in Medellín Without Airbnb Fees (2026 Guide)
Learn how to rent a furnished apartment in Medellín without paying Airbnb service fees. Compare Facebook groups, local sites, estate agents, and better alternatives.
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Mark O'Sullivan 🌎 @markos.dev · 25/12/2025
Merry Christmas 🎄 Wishing everyone a happy and peaceful day wherever you are in the world and whatever you are doing today ❤️
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Mark O'Sullivan 🌎 @markos.dev · 29/11/2025
I would love it if more projects like this were readily available for the entire world to help with bigger purchase decisions
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Mark O'Sullivan 🌎 @markos.dev · 29/11/2025
Source: www.reddit.com/r/dat...
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Mark O'Sullivan 🌎 @markos.dev · 29/11/2025
Someone on Reddit investigated the 1 year depreciation for many popular 2024 car models by gathering used car prices I love seeing when someone has put time and effort into gathering data and presenting it in such a useful way for the benefit of others
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Mark O'Sullivan 🌎 @markos.dev · 26/11/2025
Something is happening in LatAm 👀
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Mark O'Sullivan 🌎 @markos.dev · 23/11/2025
That's ANOTHER Colombian Digital Nomad Visa approved using Genki If you're applying for a Digital Nomad Visa in Colombia you can use Genki as your health insurance provider I used them and got my Colombian Digital Nomad Visa approved genki.world/?with=ca...
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Mark O'Sullivan 🌎 @markos.dev · 21/11/2025
Have you signed up to Caza de Casa? Check your emails because another 9 invitations have been sent out
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Mark O'Sullivan 🌎 @markos.dev · 13/11/2025
That's a neat addition No more adding workarounds
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Mark O'Sullivan 🌎 @markos.dev · 13/11/2025
PostHog
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Mark O'Sullivan 🌎 @markos.dev · 11/11/2025
Sonder is shutting down It's never nice to see alternatives to Airbnb close down The industry needs MORE competition not less
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Mark O'Sullivan 🌎 @markos.dev · 11/11/2025
It allows us to expand to so many parts of South America without the need to add another language
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Mark O'Sullivan 🌎 @markos.dev · 11/11/2025
The bubble is going to burst in 2027 or 2028 The investers and owners want to cash out now before it happens That would be a 5 year cycle which most other tech bubbles
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Mark O'Sullivan 🌎 @markos.dev · 10/11/2025
Próximamente 🇪🇸 This next update for Caza de Casa is going to be HUGE Some of our hosts who joined our waitlist only speak Spanish and so couldn't advertise their properties NOT ANYMORE #BuildInPublic
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Mark O'Sullivan 🌎 @markos.dev · 06/11/2025
Caza de Casa X Jetpac Jetpac are one of the leading eSIM providers in the world. Easy to setup. Fast speeds. Always connected. Are you travelling and need to stay connected? Use our code "CASA15" to get 15% off one of their eSIM plans.
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Mark O'Sullivan 🌎 @markos.dev · 05/11/2025
I got a feeling you're going to love Loro to help analyse your posts tryloro.com?atp=mark
tryloro.com
Loro - Unified Social Media Analytics
View all your social media analytics in one place. Loro brings together insights from all your platforms for a complete view of your social media performance.
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Mark O'Sullivan 🌎 @markos.dev · 04/11/2025
Here's the full article by The Economist
economist.com
Has Airbnb reached its peak?
Brian Chesky, its boss, wants to offer more than just a bed to sleep on
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Mark O'Sullivan 🌎 @markos.dev · 04/11/2025
In October 2025 Airbnb introduced a social feature that "allow users who meet through an Airbnb experience to stay in touch" Is this a sign of things to come? Will we see Airbnb move to become more of a social network in the future?
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Mark O'Sullivan 🌎 @markos.dev · 04/11/2025
The expansion into offering hotel stays suggests Airbnb is becoming more and more like Booking. Booking offer a loyalty program (Genius) to help retain customers. Is it only a matter of time before Airbnb offer something similar?
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Mark O'Sullivan 🌎 @markos.dev · 04/11/2025
Charging a lot more than your competitors will only alienate existing users. "paid $44 for a one-hour exercise class on Airbnb, only to find that the woman huffing and puffing beside her paid less than half that on Classpass, a booking site for workouts"
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Mark O'Sullivan 🌎 @markos.dev · 04/11/2025
Airbnb still have work to do when it comes to these additional offerings. "Viator, one competitor, offers ten times as many experiences in big cities such as London and New York."
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