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Show HN: I built an invoicing app to create and send invoices in minutes

https://trevidia.com
1•gemzy•2h ago
I and my buddy created Trevidia, a simple invoicing tool we built.

We wanted a simple application where we could create and send professional invoices in minutes, we got some designers to design some templates, for the application, currently it only has two templates, but other features are functional.

We are bootstrapping this and just launched today. We'd really appreciate feedback, especially what feels unnecessary, confusing, or missing. Thanks.

Show HN: I turned Dan Koe's viral content engine into Claude Code slash commands

https://github.com/vincentchan/AI-Content-Engine
1•vincentchan•30s ago•0 comments

A rationalist's guide to manifestation. Or, how to live a magical life

https://read.isabelunraveled.com/p/manifest-rationally
1•sebg•35s ago•0 comments

Show HN: AI Girl Generator – promptless character portraits consistency locks

https://clothesaichanger.com
1•jokera•3m ago•0 comments

The Tech Billionaires Behind Trump's Greenland Push

https://znetwork.org/znetarticle/the-tech-billionaires-behind-trumps-greenland-push/
1•robtherobber•4m ago•0 comments

Optimizing PHP to process 50k lines per second instead of 30

https://stitcher.io/blog/processing-11-million-rows
1•brentroose•8m ago•0 comments

Kiss Launcher – fast launcher for Android

https://kisslauncher.com/
2•ifh-hn•10m ago•1 comments

U.S. 30-year Treasury yield jumps 9 basis points higher as trade war reignites

https://www.cnbc.com/2026/01/20/us-10-year-treasury-trump-tariff-trade.html
2•zerosizedweasle•13m ago•0 comments

MacBooks, Apple Neural Engine, and Overheating

https://www.gethopp.app/blog/macbook-m4-overheating
1•eproxus•14m ago•0 comments

If people could ask for only one real-life wish, what would they choose?

1•jmvet•14m ago•1 comments

The Ozlabs team has now left IBM

https://ozlabs.org/about.html
1•walty8•16m ago•0 comments

Show HN: Remember Me – O(1) Client-Side Memory (40x cheaper than Vector DBs)

https://github.com/merchantmoh-debug/Remember-Me-AI
1•MohskiBroskiAI•20m ago•1 comments

Claude Code Won't Fix Your Life

https://www.joanwestenberg.com/claude-code-wont-fix-your-life/
2•latexr•24m ago•0 comments

Testing: Apple N1 Wi-Fi chip improves on older Broadcom chips in every way(2025)

https://arstechnica.com/gadgets/2025/11/testing-shows-apple-n1-wi-fi-chip-improves-on-older-broad...
1•mpweiher•25m ago•0 comments

Show HN: Rerankers – Models, benchmarks, and papers for RAG

https://github.com/agentset-ai/awesome-rerankers
1•midamurat•27m ago•0 comments

All In – a small tool to check real buyin after decisions

https://www.cognu.app/all-in
1•anticlickwise•27m ago•2 comments

AI Is still making code worse: A new CMU study confirms (2025)

https://blog.robbowley.net/2025/12/04/ai-is-still-making-code-worse-a-new-cmu-study-confirms/
2•mpweiher•29m ago•0 comments

Why Bitchat Is a Bad Idea: (My Audit Found Critical Zero-Days)

https://saadkhalidhere.medium.com/why-bitchat-is-a-bad-idea-my-audit-found-critical-zero-days-1b1...
2•KellyCriterion•30m ago•0 comments

UK ministers launch consultation on whether to ban social media for under-16s

https://www.theguardian.com/uk-news/2026/jan/19/uk-ministers-launch-consultation-into-whether-to-...
2•chrisjj•31m ago•0 comments

Optimizing GPU Programs from Java Using Babylon and Hat

https://openjdk.org/projects/babylon/articles/hat-matmul/hat-matmul
2•pjmlp•31m ago•0 comments

Weather Spark – The Weather Year Round Anywhere on Earth

https://weatherspark.com/
1•mihau•32m ago•0 comments

Tiled Words

https://tiledwords.com/
1•napolux•33m ago•0 comments

Workspaces and Monorepos in Package Managers

https://nesbitt.io/2026/01/18/workspaces-and-monorepos-in-package-managers.html
1•Couto•39m ago•0 comments

Automate Your AI Workflows with Claude Code Hooks

https://blog.gitbutler.com/automate-your-ai-workflows-with-claude-code-hooks
1•zdgeier•39m ago•0 comments

Will all our drugs come from China? (2024)

https://atelfo.github.io/2024/12/20/will-all-our-drugs-come-from-china.html
2•robocat•41m ago•0 comments

Ask HN: Is there a search engine that blocks SEO / AI content?

3•cauliflower99•44m ago•2 comments

Austrian cow shows first case of flexible, multi-purpose tool use in cattle

https://phys.org/news/2026-01-austrian-cow-case-flexible-multi.html
2•coolcoder613•46m ago•0 comments

IntelliJ Idea: The Documentary – Trailer [video]

https://www.youtube.com/watch?v=TwMXi6tDzLE
1•poisonborz•46m ago•0 comments

Show HN: Focusmo – A focus app I built for my ADHD time-blindness

https://www.focusmo.app/
1•elesinn•49m ago•0 comments

Why Trump's split with Europe over Greenland is a double-edged sword for Russia

https://www.cnn.com/2026/01/20/europe/analysis-putin-view-greenland-trump-latam-intl
2•breve•52m ago•0 comments

Show HN: Local and Private TradingView Alternative

https://www.vaultcharts.com/
3•AlexBThomsen•59m ago•1 comments