Odin's Most Misunderstood Feature: `context`
https://www.reddit.com/r/programming/comments/1po2i0o/odins_most_misunderstood_feature_context/

submitted by /u/gingerbill (https://www.reddit.com/user/gingerbill)
[link] (https://www.gingerbill.org/article/2025/12/15/odins-most-misunderstood-feature-context/) [comments] (https://www.reddit.com/r/programming/comments/1po2i0o/odins_most_misunderstood_feature_context/)

What can I do with ReScript?
https://www.reddit.com/r/programming/comments/1po3i99/what_can_i_do_with_renoscript/

submitted by /u/BeamMeUpBiscotti (https://www.reddit.com/user/BeamMeUpBiscotti)
[link] (https://renoscript-lang.org/blog/what-can-i-do-with-renoscript/) [comments] (https://www.reddit.com/r/programming/comments/1po3i99/what_can_i_do_with_renoscript/)

We have ipinfo at home or how to geolocate IPs in your CLI using latency
https://www.reddit.com/r/programming/comments/1po406f/we_have_ipinfo_at_home_or_how_to_geolocate_ips_in/

submitted by /u/jimaek (https://www.reddit.com/user/jimaek)
[link] (https://blog.globalping.io/we-have-ipinfo-at-home-or-how-to-geolocate-ips-in-your-cli-using-latency/) [comments] (https://www.reddit.com/r/programming/comments/1po406f/we_have_ipinfo_at_home_or_how_to_geolocate_ips_in/)

"If you time-traveled to 1979 and found yourself sitting across from me in my office at Bell Labs—just as I was drafting the initial designs for what would become 'C with Classes'—what would you tell me?": A homework by Bjarne Stroustrup.
https://www.reddit.com/r/programming/comments/1po5nq5/if_you_timetraveled_to_1979_and_found_yourself/

<!-- SC_OFF -->This was a homework given by Bjarne Stroustrup when he was my professor at Texas A&M University in Spring Semester of 2013. The course, Generic Programming in C++, was one of the most fun classes I took at Texas A&M University. I'm posting it in my blog. https://coderschmoder.com/i-time-traveled-1979-met-bjarne-stroustrup
Take note that I updated the essay to reflect current C++ releases. My original essay was written when C++11 was released, and I mostly talked about RAII, and data type abstractions. Although I thought my essay was lacking in substance, he gave me a 95 :-D. So, I thought I update my essay and share it with you. When he gave the homework I think the context of the conversation was critics were ready for C++ to die because of lack of garbage collection or memory management, and the homework was akin to killing two birds with one stone(so to speak) - one, to see if we understand RAII and the life cycle of a C++ object, and two, how we see this "shortcomings" of C++. How about you? If you time-travel back to 1979, what would you tell him? <!-- SC_ON --> submitted by /u/CoderSchmoder (https://www.reddit.com/user/CoderSchmoder)
[link] (https://coderschmoder.com/i-time-traveled-1979-met-bjarne-stroustrup) [comments] (https://www.reddit.com/r/programming/comments/1po5nq5/if_you_timetraveled_to_1979_and_found_yourself/)

Multi-tenancy and dynamic messaging workload distribution
https://www.reddit.com/r/programming/comments/1po5s10/multitenancy_and_dynamic_messaging_workload/

submitted by /u/Adventurous-Salt8514 (https://www.reddit.com/user/Adventurous-Salt8514)
[link] (https://event-driven.io/en/multitenant_and_dynamic_message_handling/) [comments] (https://www.reddit.com/r/programming/comments/1po5s10/multitenancy_and_dynamic_messaging_workload/)

Maybe consider putting "cutlass" in your CUDA/Triton kernels
https://www.reddit.com/r/programming/comments/1po5vmn/maybe_consider_putting_cutlass_in_your_cudatriton/

submitted by /u/Makneeeeee (https://www.reddit.com/user/Makneeeeee)
[link] (https://maknee.github.io/blog/2025/Maybe-Consider-Putting-Cutlass-In-Your-CUDA-Kernels/) [comments] (https://www.reddit.com/r/programming/comments/1po5vmn/maybe_consider_putting_cutlass_in_your_cudatriton/)

Feature-First Development
https://www.reddit.com/r/programming/comments/1po7ctx/featurefirst_development/

submitted by /u/Arcuru (https://www.reddit.com/user/Arcuru)
[link] (https://jackson.dev/post/feature-first-development/) [comments] (https://www.reddit.com/r/programming/comments/1po7ctx/featurefirst_development/)

Sandboxing AI Agents: Practical Ways to Limit Autonomous Behavior
https://www.reddit.com/r/programming/comments/1po8ar9/sandboxing_ai_agents_practical_ways_to_limit/

<!-- SC_OFF -->I’ve been exploring how to safely deploy autonomous AI agents without giving them too much freedom. In practice, the biggest risks come from: unrestricted tool access filesystem and network exposure agents looping or escalating actions unexpectedly I looked at different sandboxing approaches: containers (Docker, OCI) microVMs (Firecracker) user-mode kernels (gVisor) permission-based tool execution I wrote a deeper breakdown with concrete examples and trade-offs here : https://medium.com/@yessine.abdelmaksoud.03/sandboxing-for-ai-agents-2420ac69569e I’d really appreciate feedback from people working with agents in production. <!-- SC_ON --> submitted by /u/After_Customer251 (https://www.reddit.com/user/After_Customer251)
[link] (https://medium.com/@yessine.abdelmaksoud.03/sandboxing-for-ai-agents-2420ac69569e) [comments] (https://www.reddit.com/r/programming/comments/1po8ar9/sandboxing_ai_agents_practical_ways_to_limit/)

Piecemeal Formal Verification: Cloudflare, Java Exceptions, and Rust Mutexes
https://www.reddit.com/r/programming/comments/1po95q0/piecemeal_formal_verification_cloudflare_java/

submitted by /u/gavinhoward (https://www.reddit.com/user/gavinhoward)
[link] (https://gavinhoward.com/2025/12/piecemeal-formal-verification-cloudflare-java-exceptions-and-rust-mutexes/) [comments] (https://www.reddit.com/r/programming/comments/1po95q0/piecemeal_formal_verification_cloudflare_java/)

ty, a fast Python type checker by the uv devs, is now in beta
https://www.reddit.com/r/programming/comments/1pokx5j/ty_a_fast_python_type_checker_by_the_uv_devs_is/

submitted by /u/NYPuppy (https://www.reddit.com/user/NYPuppy)
[link] (https://astral.sh/blog/ty) [comments] (https://www.reddit.com/r/programming/comments/1pokx5j/ty_a_fast_python_type_checker_by_the_uv_devs_is/)

Is MCP Overhyped?
https://www.reddit.com/r/programming/comments/1pomnmd/is_mcp_overhyped/

submitted by /u/Helpful_Geologist430 (https://www.reddit.com/user/Helpful_Geologist430)
[link] (https://youtu.be/CY9ycB4iPyI?si=NmrEsod9-lVaL6tz) [comments] (https://www.reddit.com/r/programming/comments/1pomnmd/is_mcp_overhyped/)

Building the DSL for Fixing Natural Language
https://www.reddit.com/r/programming/comments/1poo25m/building_the_dsl_for_fixing_natural_language/

submitted by /u/ChiliPepperHott (https://www.reddit.com/user/ChiliPepperHott)
[link] (https://elijahpotter.dev/articles/building-the-weir-language) [comments] (https://www.reddit.com/r/programming/comments/1poo25m/building_the_dsl_for_fixing_natural_language/)

Building a Custom DatePicker in Java Swing and Persisting Dates in MySQL
https://www.reddit.com/r/programming/comments/1pooqzj/building_a_custom_datepicker_in_java_swing_and/

<!-- SC_OFF -->Java Swing doesn’t provide a modern DatePicker by default, so I built a custom calendar component in pure Swing and connected it to MySQL using JDBC. The calendar supports month/year navigation, date selection, and saving the selected date directly into a DATE column in MySQL. This is useful for forms like birth date, registration, or appointments. I shared a short video walkthrough and the full source code for anyone learning Java Swing or working on desktop projects. 📺 Video: Java Swing Custom Calendar DatePicker | Save Selected Date into MySQL Database (https://www.youtube.com/watch?v=pLI2I6TCiFw&t=426s)
💻 Code: Love2Programming (https://love2programming.com/post-list/2034) <!-- SC_ON --> submitted by /u/Substantial-Log-9305 (https://www.reddit.com/user/Substantial-Log-9305)
[link] (https://www.youtube.com/watch?v=pLI2I6TCiFw&t=426s) [comments] (https://www.reddit.com/r/programming/comments/1pooqzj/building_a_custom_datepicker_in_java_swing_and/)

A Survey of Dynamic Array Structures
https://www.reddit.com/r/programming/comments/1posbq0/a_survey_of_dynamic_array_structures/

submitted by /u/gingerbill (https://www.reddit.com/user/gingerbill)
[link] (https://azmr.uk/dyn/) [comments] (https://www.reddit.com/r/programming/comments/1posbq0/a_survey_of_dynamic_array_structures/)

AWS CEO says replacing junior devs with AI is 'one of the dumbest ideas'
https://www.reddit.com/r/programming/comments/1pou327/aws_ceo_says_replacing_junior_devs_with_ai_is_one/

submitted by /u/ImpressiveContest283 (https://www.reddit.com/user/ImpressiveContest283)
[link] (https://www.finalroundai.com/blog/aws-ceo-ai-cannot-replace-junior-developers) [comments] (https://www.reddit.com/r/programming/comments/1pou327/aws_ceo_says_replacing_junior_devs_with_ai_is_one/)

Short-Circuiting Correlated Subqueries in SQLite
https://www.reddit.com/r/programming/comments/1pou7p8/shortcircuiting_correlated_subqueries_in_sqlite/

submitted by /u/emschwartz (https://www.reddit.com/user/emschwartz)
[link] (https://emschwartz.me/short-circuiting-correlated-subqueries-in-sqlite/) [comments] (https://www.reddit.com/r/programming/comments/1pou7p8/shortcircuiting_correlated_subqueries_in_sqlite/)

Lexical, Vector & Hybrid Search with Elasticsearch • Carly Richmond
https://www.reddit.com/r/programming/comments/1poww70/lexical_vector_hybrid_search_with_elasticsearch/

submitted by /u/goto-con (https://www.reddit.com/user/goto-con)
[link] (https://youtu.be/DeEkA9cunB4) [comments] (https://www.reddit.com/r/programming/comments/1poww70/lexical_vector_hybrid_search_with_elasticsearch/)

Docker Hardened Images is now free
https://www.reddit.com/r/programming/comments/1poxta3/docker_hardened_images_is_now_free/

submitted by /u/PurpleLabradoodle (https://www.reddit.com/user/PurpleLabradoodle)
[link] (https://www.docker.com/blog/docker-hardened-images-for-every-developer/) [comments] (https://www.reddit.com/r/programming/comments/1poxta3/docker_hardened_images_is_now_free/)

System calls: how programs talk to the Linux kernel
https://www.reddit.com/r/programming/comments/1poy70l/system_calls_how_programs_talk_to_the_linux_kernel/

<!-- SC_OFF -->Hello everyone, I've just published the second post in my Linux Inside Out series. In the first post we demystified the Linux kernel a bit: where it lives, how to boot it in a VM, and we even wrote a tiny init program. In this second post we go one layer deeper and look at how programs actually talk to the kernel.
We'll do a few small experiments to see: how our init program (that we wrote in the first post) communicates with the kernel via system calls how something like `echo "hello"` ends up printing text on your screen how to trace system calls to understand what a program is doing I’m mainly targeting developers and self-hosters who use Linux daily and are curious about the internals of a Linux-based operating system. This is part 2 of a longer series, going layer by layer through a Linux system while trying to keep things practical and approachable. Link (part 2): https://serversfor.dev/linux-inside-out/system-calls-how-programs-talk-to-the-linux-kernel/
Link (part 1): https://serversfor.dev/linux-inside-out/the-linux-kernel-is-just-a-program/ Any feedback is appreciated. <!-- SC_ON --> submitted by /u/indieHungary (https://www.reddit.com/user/indieHungary)
[link] (https://serversfor.dev/linux-inside-out/system-calls-how-programs-talk-to-the-linux-kernel/) [comments] (https://www.reddit.com/r/programming/comments/1poy70l/system_calls_how_programs_talk_to_the_linux_kernel/)

Maintaining an open source software during Hacktoberfest
https://www.reddit.com/r/programming/comments/1poznp6/maintaining_an_open_source_software_during/

submitted by /u/CrociDB (https://www.reddit.com/user/CrociDB)
[link] (https://crocidb.com/post/maintaining-an-oss-during-hacktoberfest/) [comments] (https://www.reddit.com/r/programming/comments/1poznp6/maintaining_an_open_source_software_during/)

Stack Overflow Annual Survey
https://www.reddit.com/r/programming/comments/1pozw5i/stack_overflow_annual_survey/

<!-- SC_OFF -->Some of my (subjective) surprising takeaways: Haskell, Clojure, Nix didn't make list of languages, only write-ins. Clojure really surprised me as it's not in top listed but Lisp is! Maybe it's because programmers of all Lisp dialects (including Clojure) self-reported as Lisp users. Emacs didnt make list of top editors, only write-in Gleam is one of most admired langs (never heard of it before!) Rust, Cargo most admired language & build tool - not surprising considering Rust hype uv is most admired tech tag - not surprising as it's a popular Python tool implemented in Rust What do you all think of this year's survey results? Did you participate? <!-- SC_ON --> submitted by /u/sohang-3112 (https://www.reddit.com/user/sohang-3112)
[link] (https://survey.stackoverflow.co/2025/technology/) [comments] (https://www.reddit.com/r/programming/comments/1pozw5i/stack_overflow_annual_survey/)