Hacker News: mateusfreira

New comment by mateusfreira in "Sodium-ion batteries approach cost parity with LFP"

mateusfreira — Fri, 06 Nov 2026 23:31:09 +0000

Every day, there's another news story about it... Just let me know when we can actually buy it. It's getting boring already.

New comment by mateusfreira in "Veritas Villages – libertarian intentional communities in Latin America"

mateusfreira — Fri, 23 Oct 2026 23:51:55 +0000

Freedom, Independence, Resilience, Sustainability and Transparency. In practice, that means off-grid-capable infrastructure (solar, natural water, waste treatment, community food production)

Veritas Villages – libertarian intentional communities in Latin America

mateusfreira — Fri, 23 Oct 2026 23:51:55 +0000

Article URL: https://gst.artofliberty.org/veritas-villages-libertarian-intentional-communities-in-latin-america/

Comments URL: https://news.ycombinator.com/item?id=50216949

Points: 4

# Comments: 1

New comment by mateusfreira in "X (Twitter) Is Down"

mateusfreira — Fri, 16 Jan 2026 15:34:06 +0000

Seems down here in Brazil

New comment by mateusfreira in "Ask HN: What skills do you want to develop or improve in 2026?"

mateusfreira — Fri, 26 Dec 2025 13:24:40 +0000

Technical/Non-technical skills: * Off-grid energy production (Solar, etc.) * Food production on a small scale * Homesteading * 3D printing * And all interfaces of that with technology

New comment by mateusfreira in "Has Brazil Invented the Future of Money?"

mateusfreira — Wed, 23 Jul 2025 14:01:37 +0000

Most people don't think about that. Once they realise things change, Brazil also uses Bitcoin a lot because of a lack of trust. Pix would be even more widely used if the government took longer to start using it as a weapon (as it has already done)

New comment by mateusfreira in "Has Brazil Invented the Future of Money?"

mateusfreira — Wed, 23 Jul 2025 13:54:39 +0000

Pix has become virtually liquid cash here in Brazil. We use it for everything from tipping a waiter to buying an apartment or house in seconds.

Before the release, when I read about the system, I was skeptical, but after its release (approximately 5 years ago), it has worked seamlessly, and adoption is now nearly 100% across the economy.

New comment by mateusfreira in "I built an app to stop me doomscrolling by touching grass"

mateusfreira — Mon, 24 Feb 2025 13:17:07 +0000

Can we change it to unblock only when I do 10 pushups? I would love to get that to my Nephew and Nieces phone

Why (Neo)Vim is not for you

mateusfreira — Mon, 01 Jul 2024 13:23:52 +0000

Article URL: https://carbon-steel.github.io/jekyll/update/2024/02/16/vim.html

Comments URL: https://news.ycombinator.com/item?id=40845640

Points: 1

# Comments: 0

Code Coverage for Rust Projects with GitHub Actions

mateusfreira — Sun, 16 Jun 2024 23:06:08 +0000

Article URL: https://blog.freira.dev/@mateusfreira-2024-06-15-code-coverage-for-rust-projects-with-github-actions/

Comments URL: https://news.ycombinator.com/item?id=40700844

Points: 1

# Comments: 0

NunDb is now referenced in the Database of Databases

mateusfreira — Thu, 30 May 2024 21:16:08 +0000

Article URL: https://dbdb.io/db/nundb

Comments URL: https://news.ycombinator.com/item?id=40528806

Points: 1

# Comments: 0

Reviewing Changes [open source crash course] [video]

mateusfreira — Mon, 13 May 2024 11:13:17 +0000

Article URL: https://www.youtube.com/watch?v=TJ83ePwyH_A

Comments URL: https://news.ycombinator.com/item?id=40341865

Points: 1

# Comments: 0

New comment by mateusfreira in "New startup sells coffee through SSH"

mateusfreira — Wed, 01 May 2024 21:36:15 +0000

Same here, I know Prime tho. I really looks fun, but sound scary

HashiCorp strikes OpenTofuOrg back and more [audio]

mateusfreira — Mon, 08 Apr 2024 21:25:39 +0000

Article URL: https://twitter.com/changelog/status/1777442945144139832

Comments URL: https://news.ycombinator.com/item?id=39973893

Points: 1

# Comments: 0

Open source small business in real life Oban [audio]

mateusfreira — Sun, 24 Mar 2024 14:05:25 +0000

Article URL: https://changelog.com/friends/35

Comments URL: https://news.ycombinator.com/item?id=39807308

Points: 2

# Comments: 0

Node.js: The Documentary [video]

mateusfreira — Thu, 21 Mar 2024 17:54:47 +0000

Article URL: https://www.youtube.com/watch?v=LB8KwiiUGy0

Comments URL: https://news.ycombinator.com/item?id=39782033

Points: 40

# Comments: 0

New comment by mateusfreira in "Consulting to Fix AI-Created Software May Be Our Next Big Opportunity"

mateusfreira — Fri, 15 Mar 2024 10:44:27 +0000

Your point about the decommissioning is right, this is a hard topic that should be teach for sure.

I am a little skeptical with documentation fully written by AI will not became too verbose

Consulting to Fix AI-Created Software May Be Our Next Big Opportunity

mateusfreira — Thu, 14 Mar 2024 13:35:05 +0000

Article URL: https://mateusfreira.github.io/@mateusfreira-2024-03-02-consultancy-to-fix-ai-created-software-may-be-our-next-job/

Comments URL: https://news.ycombinator.com/item?id=39703800

Points: 2

# Comments: 2

New comment by mateusfreira in "AI PR adds auto generated comments to whole Spring Boot Project"

mateusfreira — Tue, 27 Feb 2024 15:43:24 +0000

I struggle to see how any open-source project would accept this kind os PRs, the tools seems ok for research, but not a good ideia to push PRs like that open source projects.

New comment by mateusfreira in "The Design Principles of the Elixir Type System"

mateusfreira — Thu, 11 Jan 2024 10:58:26 +0000

Elixir is going in a very interesting direction, it may be the Language to I will learn this Year

The work on the type System seems to be going well and the work on machine learn is starting to get attention