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What are the costs and risks of replacing COBOL systems with modern alternatives

https://twitter.com/BrianRoemmele/status/2081212772818551269
2•ksec•1h ago

Comments

ksec•1h ago
Also from https://x.com/LundukeJournal/status/2081376006460395685
orionblastar•29m ago
I worked at the US Army ATCOM base migrating databases and programs from an IBM Mainframe to Windows 3.X using Access and SQL Server and Visual BASIC. We kept the IBM Mainframe and HP/UX databases and programs to compare to the new ones. If the results where the same, we were good enough to switch over. If the results are different, time to debug the modern programs.

I earned my stripes as a Super Debugger by fixing other people's mistakes and bugs. Sure you are going to have them, you have to debug your way out of it.

Google Cache used to have a copy of this page at

https://www.hornet.org/wikipedia-notes.txt
1•jruohonen•20s ago•0 comments

Show HN: Readability for web and PDFs with TTS and local AI summary

https://github.com/ldenoue/readability-read-aloud-web-pdf-ai-summary
1•ldenoue•35s ago•0 comments

Show HN: How many other kids need to be in the room before they match names

https://names.vaguespac.es/
1•thebigship•1m ago•0 comments

The Rust Async Runtime Footgun That Blocks Your Tokio Thread Pool

https://medium.com/@yalovoy/the-rust-async-runtime-footgun-that-blocks-your-entire-tokio-thread-p...
1•zero-ground-445•1m ago•0 comments

Show HN: An interactive way to exploit an LLM without going to jail

https://github.com/joshfischer1108/jailbreak-lab
1•joshfischer1108•2m ago•0 comments

The Segment Descriptor Cache (1998)

https://www.rcollins.org/ddj/Aug98/Aug98.html
1•jruohonen•5m ago•0 comments

Introduction to Data-Oriented Design [pdf]

https://www.gamedevs.org/uploads/introduction-to-data-oriented-design.pdf
1•tosh•8m ago•0 comments

Show HN: I made Claude quiz me on my own code before showing it

https://github.com/De-Cri/dont-kick-me-out
1•Ssamu3909•8m ago•0 comments

I Find Problems to Solve as a Staff Engineer

https://lalitm.com/post/find-problems-staff-engineer/
2•birdculture•11m ago•0 comments

Good productivity tools that run 100% in the browser (privacy in mind)

https://github.com/slaveofcode/goodwebtools
1•kresnadev•11m ago•0 comments

Show HN: Forkbench – a native Mac control room for several CLI coding agents

https://forkbench.com
1•forkbench•11m ago•0 comments

Hugging Face CEO calls for 'radical transparency' after 'unprecedented' OpenAI

https://techcrunch.com/2026/07/26/hugging-face-ceo-calls-for-radical-transparency-after-unprecede...
1•sbulaev•12m ago•0 comments

Oil tanker explodes after hitting naval mine in Strait of Hormuz

https://www.jpost.com/middle-east/iran-news/article-903687
2•ipunchghosts•12m ago•2 comments

Thoughts about the Leiden Declaration

https://gowers.wordpress.com/2026/07/26/thoughts-about-the-leiden-declaration/
1•artninja1988•15m ago•1 comments

Bast: SSH Multiplexer

https://bast.sh
1•handfuloflight•15m ago•0 comments

Show HN: Vocabulary, a daily game to learn words(V2)

https://www.quizingo.app/vocabulary
1•coder97•16m ago•0 comments

It's not empowering to hand off the details

https://davidnicholaswilliams.com/its-not-empowering-to-hand-off-the-details/
3•davnicwil•21m ago•0 comments

I spent a while building a torrent client for the Mac. It's called Swarm

https://get-swarm.com/
1•gkaimakas•25m ago•2 comments

Show HN: Simple Daily Game

https://playchain.app/
1•Fluzzman•27m ago•0 comments

The Constitutionality of Civil Forfeiture (2016)

https://yalelawjournal.org/feature/the-constitutionality-of-civil-forfeiture
1•downbad_•27m ago•0 comments

How AST-grep Rewrote Tree-sitter in Rust and Made It 30% Faster

https://astgrep.com/blog/tree-sitter-rust-rewrite
2•herrington_d•28m ago•0 comments

French firefighters face 'pyrocumulonimbus' for first time

https://www.france24.com/en/live-news/20260726-french-firefighters-face-pyrocumulonimbus-for-firs...
10•saaaaaam•29m ago•2 comments

Turn your phone into a remote deck for your Windows laptop

https://github.com/ronak-create/LapDeck
1•ronak_parmar•32m ago•1 comments

Independent PHA Asteroid Notability Scoring by Astrophyzix Observatory

https://www.academia.edu/167939168/The_Astrophyzix_Risk_Index_ARI_A_Heuristic_Scoring_System_for_...
3•ProfessorRob•36m ago•0 comments

Ask HN: Anyone else experiencing extreme Codex limits token burn rate?

1•throwaway2027•37m ago•1 comments

Reproducible negative result on the BATADAL water-ICS benchmark

https://github.com/holland202/sentinel-batadal-validation
1•badatchess•37m ago•0 comments

SP/1.0: deterministic, reproducible verdicts for AI-agent decisions

https://github.com/Fame510/SHACKLE/blob/master/SP-1.0-SPECIFICATION.md
2•shacklepro•38m ago•0 comments

OpenLoco Version 26.07 Release

https://openloco.io/news/2026/07/openloco-v26.07.html
1•jandeboevrie•41m ago•0 comments

Lisp moving Forth moving Lisp

https://letoverlambda.com/textmode.cl/guest/chap8.html
1•fallat•41m ago•0 comments

BYD Yangwang U8 has remarkable emergency floating function that would save lives

https://supercarblondie.com/byd-yangwang-u8-emergency-floating-function/
3•thunderbong•42m ago•0 comments