Built a real-time vessel tracker using H3 hexagonal spatial indexing for proximity detection
https://www.reddit.com/r/programming/comments/1q9jplj/built_a_realtime_vessel_tracker_using_h3/

<!-- SC_OFF -->Wrote up the full implementation here if you're interested in the technical details: https://dev-jeb.com/deliberate/portal/blog/ocean-terminal-vessel-tracker <!-- SC_ON --> submitted by /u/dev_jeb (https://www.reddit.com/user/dev_jeb)
[link] (https://dev-jeb.com/deliberate/portal/showcase/ocean-terminal-vessel-tracker) [comments] (https://www.reddit.com/r/programming/comments/1q9jplj/built_a_realtime_vessel_tracker_using_h3/)

Gixy-Next: NGINX Configuration Security & Hardening Scanner
https://www.reddit.com/r/programming/comments/1q9u4w1/gixynext_nginx_configuration_security_hardening/

submitted by /u/MegaManSec2 (https://www.reddit.com/user/MegaManSec2)
[link] (https://gixy.io/) [comments] (https://www.reddit.com/r/programming/comments/1q9u4w1/gixynext_nginx_configuration_security_hardening/)

The biggest obstacle for engineer productivity in 2026
https://www.reddit.com/r/programming/comments/1q9uiks/the_biggest_obstacle_for_engineer_productivity_in/

submitted by /u/strategizeyourcareer (https://www.reddit.com/user/strategizeyourcareer)
[link] (https://strategizeyourcareer.com/p/this-ai-problem-is-the-biggest-risk-for-software-engineers-in-2026) [comments] (https://www.reddit.com/r/programming/comments/1q9uiks/the_biggest_obstacle_for_engineer_productivity_in/)

Reading CPython bytecode with dis: stack execution walkthrough (Length: 3:43)
https://www.reddit.com/r/programming/comments/1q9wonq/reading_cpython_bytecode_with_dis_stack_execution/

<!-- SC_OFF -->Short walkthrough of how CPython executes bytecode using the stack model (push/pop), using Python’s built-in dis module. Covers LOAD_CONST, STORE_NAME/STORE_FAST, LOAD_NAME, BINARY_OP, plus PUSH_NULL, CALL, POP_TOP in a print() call flow. Useful if you’ve seen dis output and wanted a mental model. <!-- SC_ON --> submitted by /u/mdns-99 (https://www.reddit.com/user/mdns-99)
[link] (https://youtu.be/LH2Y15OkG64?si=inerlenGM8r8DfH6) [comments] (https://www.reddit.com/r/programming/comments/1q9wonq/reading_cpython_bytecode_with_dis_stack_execution/)

Thanks AI! - Rich Hickey, creator of Clojure, about AI
https://www.reddit.com/r/programming/comments/1qa0ujk/thanks_ai_rich_hickey_creator_of_clojure_about_ai/

submitted by /u/captvirk (https://www.reddit.com/user/captvirk)
[link] (https://gist.github.com/richhickey/ea94e3741ff0a4e3af55b9fe6287887f) [comments] (https://www.reddit.com/r/programming/comments/1qa0ujk/thanks_ai_rich_hickey_creator_of_clojure_about_ai/)

Visual breakdown of the DNS resolution process from browser to server
https://www.reddit.com/r/programming/comments/1qa412v/visual_breakdown_of_the_dns_resolution_process/

submitted by /u/nulless (https://www.reddit.com/user/nulless)
[link] (https://toolkit.whysonil.dev/how-it-works/dns) [comments] (https://www.reddit.com/r/programming/comments/1qa412v/visual_breakdown_of_the_dns_resolution_process/)

AI insiders seek to poison the data that feeds them
https://www.reddit.com/r/programming/comments/1qa4tl6/ai_insiders_seek_to_poison_the_data_that_feeds/

submitted by /u/RNSAFFN (https://www.reddit.com/user/RNSAFFN)
[link] (https://www.theregister.com/2026/01/11/industry_insiders_seek_to_poison/) [comments] (https://www.reddit.com/r/programming/comments/1qa4tl6/ai_insiders_seek_to_poison_the_data_that_feeds/)

We default to addition
https://www.reddit.com/r/programming/comments/1qa64pk/we_default_to_addition/

<!-- SC_OFF -->Subtracting usually takes more effort and is not our default approach to solving problems; after all, how deleting something can produce value? Doesn't less mean worse? But so often, reducing complexity and streamlining process by simplifying them - taking something out, rather than adding something in - leads to true improvement, instead of adding more and more and more - tools, technologies and features. Useful perspective to have when solving the next problem - maybe the solution is to delete/simplify, instead of adding? <!-- SC_ON --> submitted by /u/BinaryIgor (https://www.reddit.com/user/BinaryIgor)
[link] (https://www.ufried.com/blog/addition_bias/) [comments] (https://www.reddit.com/r/programming/comments/1qa64pk/we_default_to_addition/)

Sophisticated Simplicity of Modern SQLite
https://www.reddit.com/r/programming/comments/1qa8qre/sophisticated_simplicity_of_modern_sqlite/

submitted by /u/yawaramin (https://www.reddit.com/user/yawaramin)
[link] (https://shivekkhurana.com/blog/sqlite-in-production/) [comments] (https://www.reddit.com/r/programming/comments/1qa8qre/sophisticated_simplicity_of_modern_sqlite/)

80% of Rye in 20% of the Time [1/3]
https://www.reddit.com/r/programming/comments/1qa8vvb/80_of_rye_in_20_of_the_time_13/

<!-- SC_OFF -->feedback welcome! <!-- SC_ON --> submitted by /u/middayc (https://www.reddit.com/user/middayc)
[link] (https://ryelang.org/blog/posts/learn_80_rye_in_20_time_code/) [comments] (https://www.reddit.com/r/programming/comments/1qa8vvb/80_of_rye_in_20_of_the_time_13/)

Rethinking Helix
https://www.reddit.com/r/programming/comments/1qa9m6o/rethinking_helix/

submitted by /u/mttd (https://www.reddit.com/user/mttd)
[link] (https://asta.boserup.eu/forest/rethinking-helix/) [comments] (https://www.reddit.com/r/programming/comments/1qa9m6o/rethinking_helix/)

LLVM: The bad parts
https://www.reddit.com/r/programming/comments/1qaeile/llvm_the_bad_parts/

submitted by /u/Necrotos (https://www.reddit.com/user/Necrotos)
[link] (https://www.npopov.com/2026/01/11/LLVM-The-bad-parts.html) [comments] (https://www.reddit.com/r/programming/comments/1qaeile/llvm_the_bad_parts/)

The C++ Compiler Is A Nightmare!
https://www.reddit.com/r/programming/comments/1qagtj3/the_c_compiler_is_a_nightmare/

submitted by /u/BlueGoliath (https://www.reddit.com/user/BlueGoliath)
[link] (https://www.youtube.com/watch?v=NQesrVuraUc) [comments] (https://www.reddit.com/r/programming/comments/1qagtj3/the_c_compiler_is_a_nightmare/)

Maybe the database got it right
https://www.reddit.com/r/programming/comments/1qaguow/maybe_the_database_got_it_right/

submitted by /u/fernandohur (https://www.reddit.com/user/fernandohur)
[link] (https://fhur.me/posts/2026/maybe-the-database-got-it-right) [comments] (https://www.reddit.com/r/programming/comments/1qaguow/maybe_the_database_got_it_right/)

C++26 - What's In It For You? - Marc Gregoire - CppCon 2025
https://www.reddit.com/r/programming/comments/1qah2k3/c26_whats_in_it_for_you_marc_gregoire_cppcon_2025/

submitted by /u/BlueGoliath (https://www.reddit.com/user/BlueGoliath)
[link] (https://www.youtube.com/watch?v=PcidhLUYp-4) [comments] (https://www.reddit.com/r/programming/comments/1qah2k3/c26_whats_in_it_for_you_marc_gregoire_cppcon_2025/)