July 13, 2026

# Nightly Librarian — Newsletter draft

Run: 85c30ba3-fd39-450d-b1fb-9c28f7f1b7be
Started: 2026-07-13T11:01:19.306Z
Completed: 2026-07-13T11:07:53.082Z

## Worth attention

- **GhostLock, a stack-UAF that has existed in all Linux distributions for 15 years**
  https://nebusec.ai/research/ionstack-part-2/
  GhostLock is a 15-year Linux kernel stack-UAF with a published local root/container-escape path; patch current kernels quickly.
- **Show HN: Mindwalk – Replay coding-agent sessions on a 3D map of your codebase**
  https://github.com/cosmtrek/mindwalk
  Mindwalk replays Claude Code and Codex sessions on a local 3D repo map, exposing search/read/edit scope and verify churn.
- **Protobuf-py: Protobuf for Python, without compromises**
  https://buf.build/blog/protobuf-py
  Buf launched protobuf-py, a new Python protobuf runtime claiming full conformance, readable typed codegen, and optional Rust acceleration.
- **My 2 API products make $5K/month combined. What actually grew them**
  https://www.reddit.com/r/SaaS/comments/1uulws9/my_2_api_products_make_5kmonth_combined_what/
  A solo founder shared a repeatable API growth playbook: SEO from day one, free utility pages, alternative pages, fast support, and cross-po…
- **Hacking Apple - SQL Injection to Remote Code Execution — ProjectDiscovery Blog**
  https://projectdiscovery.io/blog/hacking-apple-with-sql-injection
  ProjectDiscovery’s Apple/Mura writeup is old but detailed: a pre-auth SQLi in Masa/Mura CMS was chained to RCE, then fixed by Apple within…

## Full digest

- [R] [reddit-saas] Landing pages should be more interactive (check out the end) — https://www.reddit.com/r/SaaS/comments/1uu9fdj/landing_pages_should_be_more_interactive_check/ — Landing pages should be more interactive (check out the end)
- [R] [lobsters] Data-directed programming in Haskell (SICP2.4.3) — https://entropicthoughts.com/sicp-2-4-data-directed-programming-in-haskell — Data-directed programming in Haskell (SICP2.4.3)
- [M] [lobsters] Hacking Apple - SQL Injection to Remote Code Execution — ProjectDiscovery Blog — https://projectdiscovery.io/blog/hacking-apple-with-sql-injection — ProjectDiscovery’s Apple/Mura writeup is old but detailed: a pre-auth SQLi in Masa/Mura CMS was chained to RCE, then fixed by Apple within…
- [R] [lobsters] Make your own Windows 98 OEM Install — https://www.youtube.com/watch?v=zUm5eW_XGMU — Make your own Windows 98 OEM Install
- [R] [hn-top] Vint Cerf, a “father of the Internet”, is retiring — https://techcrunch.com/2026/06/30/the-father-of-the-internet-is-finally-retiring/ — Vint Cerf, a “father of the Internet”, is retiring
- [P] [hn-top] Show HN: Mindwalk – Replay coding-agent sessions on a 3D map of your codebase — https://github.com/cosmtrek/mindwalk — Mindwalk replays Claude Code and Codex sessions on a local 3D repo map, exposing search/read/edit scope and verify churn.
- [P] [hn-top] Protobuf-py: Protobuf for Python, without compromises — https://buf.build/blog/protobuf-py — Buf launched protobuf-py, a new Python protobuf runtime claiming full conformance, readable typed codegen, and optional Rust acceleration.
- [R] [hn-top] Text art tools — https://hlnet.notion.site/text-art-tools — Text art tools
- [R] [hn-top] Jellyfish Undersea Roundabout — https://visitfaroeislands.com/en/plan-your-stay/getting-around/world-first-under-sea-roundabout — Jellyfish Undersea Roundabout
- [R] [hn-top] Modern decor may be straining people's brains — https://studyfinds.com/modern-decor-may-be-straining-peoples-brains/ — Modern decor may be straining people's brains
- [R] [hn-top] Autopsy Study Finds Replicating SARS-CoV-2 in the Hearts of Long Covid — https://my.uscap.org/uscap/program/S0tc675/index.cfm?pgid=5167&sid=14770&abid=51228 — Autopsy Study Finds Replicating SARS-CoV-2 in the Hearts of Long Covid
- [R] [openai-status] Elevated conversation error rates on ChatGPT for iOS — https://status.openai.com//incidents/01KXAVPTZ85KG478DP1YC0SV2V — OpenAI logged an iOS-only 403 incident; too narrow and transient for this memo.
- [R] [hn-show] Show HN: Shirei, cross-platform GUI framework in native Go — https://github.com/hasenj/go-shirei/ — Show HN: Shirei, cross-platform GUI framework in native Go
- [R] [hn-show] Show HN: Earth Game – An offline CLI for turning life goals into quests — https://github.com/skorotkiewicz/earth-game — Show HN: Earth Game – An offline CLI for turning life goals into quests
- [R] [reddit-saas] Celebrating my first month of my startup! — https://www.reddit.com/r/SaaS/comments/1uuybi9/celebrating_my_first_month_of_my_startup/ — I’ve founded “Kreated”, my new marketing agency. In the last 45 days, i’ve managed to make nearly $2k USD. Almost purely profit…
- [R] [reddit-saas] First customer. First lifetime deal. 🚀 — https://www.reddit.com/r/SaaS/comments/1uuph5o/first_customer_first_lifetime_deal/ — (Founder Here) Just got the first customer for Calsico today. It’s funny how a single payment notification can suddenly make mo…
- [P] [reddit-saas] My 2 API products make $5K/month combined. What actually grew them — https://www.reddit.com/r/SaaS/comments/1uulws9/my_2_api_products_make_5kmonth_combined_what/ — A solo founder shared a repeatable API growth playbook: SEO from day one, free utility pages, alternative pages, fast support, and cross-po…
- [R] [reddit-saas] You can still beat 99% of your competitors without stunts or 996 — https://www.reddit.com/r/SaaS/comments/1uut6xa/you_can_still_beat_99_of_your_competitors_without/ — IMO, a lot of founders are overcomplicating what it takes to stand out. As the founder of Supademo and Freshline (scaled to $4M…
- [R] [reddit-saas] I’m putting together a focused Discord server for people who are actively building or preparing to launch a SaaS product. — https://www.reddit.com/r/SaaS/comments/1uv11f0/im_putting_together_a_focused_discord_server_for/ — The community is specifically for: Solo founders and small founding teams First-time SaaS founders Developers building their ow…
- [R] [reddit-saas] idk if SEO is worth it early on for a SaaS — https://www.reddit.com/r/SaaS/comments/1uuxr1x/idk_if_seo_is_worth_it_early_on_for_a_saas/ — hello friends , I’ve been working on a small SaaS and started looking into SEO recently tbh it feels a bit overwhelming like ke…
- [R] [reddit-saas] Need advice: Should I make my $1 trial free? — https://www.reddit.com/r/SaaS/comments/1uv2ods/need_advice_should_i_make_my_1_trial_free/ — I launched my Chrome extension SaaS 3 days ago. Right now I have paid trial plan of $1. The stats are mentioned below : https:/…
- [R] [reddit-saas] 4–5 years and one big pivot later, I got my First Paying Customer! — https://www.reddit.com/r/SaaS/comments/1uuui2x/45_years_and_one_big_pivot_later_i_got_my_first/ — 4–5 years ago, I needed crime data for the entire US for an app idea I was building. The app itself turned out not to be very u…
- [R] [reddit-saas] What's the earliest signal your company is about to lose revenue? — https://www.reddit.com/r/SaaS/comments/1uv2dyf/whats_the_earliest_signal_your_company_is_about/ — I've been thinking about this a lot recently. Every company seems to have moments where everyone says, "Looking back, the signs…
- [R] [reddit-saas] First 6 months dealing with chargebacks on my SaaS, is any chargeback alerts system actually worth it? — https://www.reddit.com/r/SaaS/comments/1uv227n/first_6_months_dealing_with_chargebacks_on_my/ — Hey folks, I run a small b2b saas and chargebacks have become more of a headache than i expected. In the last 6 months i've had…
- [R] [reddit-saas] One year after launch — https://www.reddit.com/r/SaaS/comments/1uv489g/one_year_after_launch/ — I have 169 registered users. I have 236 clicks from Google. I have 5,2k impressions from Google. But only 6 users have paid so…
- [R] [reddit-saas] How I found a niche with a gap — https://www.reddit.com/r/SaaS/comments/1uuzq7g/how_i_found_a_niche_with_a_gap/ — Hello r/SaaS, I wanted to share my experience on how I found what I think is a gap in the niche of social media s…
- [R] [reddit-saas] 🪦Repo Graveyard & Vibe Coding: The connection — https://www.reddit.com/r/SaaS/comments/1uv3sce/repo_graveyard_vibe_coding_the_connection/ — Every developer eventually ends up with one. A folder full of abandoned ideas. Projects that almost worked. Half-finished SaaS…
- [R] [reddit-saas] Appreciate the feedback - good or bad, it will help — https://www.reddit.com/r/SaaS/comments/1uv2xc9/appreciate_the_feedback_good_or_bad_it_will_help/ — A while ago a user complained about negative comments someone left on their site feedback.. When I first posted about SquarePic…
- [R] [reddit-saas] 80% of your new accounts will never see value — https://www.reddit.com/r/SaaS/comments/1uv2qta/80_of_your_new_accounts_will_never_see_value/ — Not because your product is weak. Not because the market shifted. Not because the champion left. Because 80% is the default act…
- [R] [reddit-saas] What building a SaaS solo actually looks like (the part nobody talks about) — https://www.reddit.com/r/SaaS/comments/1uuxu0h/what_building_a_saas_solo_actually_looks_like_the/ — I've been building a SaaS solo, and one thing I've realised is that writing the actual product is probably only 30% of the work…
- [R] [reddit-saas] Finally Got a Paying Customer! — https://www.reddit.com/r/SaaS/comments/1uutf40/finally_got_a_paying_customer/ — For months I kept building features instead of talking to potential users. Nothing happened. I finally changed my approach. I s…
- [R] [reddit-saas] Building something Cool Raspberry Pi + picoclaw — https://www.reddit.com/r/SaaS/comments/1uv1mi0/building_something_cool_raspberry_pi_picoclaw/ — Making a AI agent that will scout and monitor and find social signals and opportunities Found an old and Playing with raspberry…
- [R] [reddit-saas] Task failed successfully. — https://www.reddit.com/r/SaaS/comments/1uv54n9/task_failed_successfully/ — I've been trying to finish my build for the past few weeks, and today I finally got the whole pipeline running. 😗 The funny par…
- [R] [reddit-saas] Looking for advice on first steps to marketing a product I have built! — https://www.reddit.com/r/SaaS/comments/1uv5288/looking_for_advice_on_first_steps_to_marketing_a/ — Hey all, Background on me - I'm a former founding engineer at a startup that was acquired in the education space in the UK. I'v…
- [R] [reddit-saas] Is it ok to publish your SaaS without custom domain? — https://www.reddit.com/r/SaaS/comments/1uv4zad/is_it_ok_to_publish_your_saas_without_custom/ — Hey there! I am building a SaaS and I want to launch it but it's not validated yet. The MVP is built, is it ok to publish it fo…
- [R] [reddit-saas] Building an AI product? — https://www.reddit.com/r/SaaS/comments/1uv4yqs/building_an_ai_product/ — AIDeckly now lets founders publish articles and product updates for free. You can publish up to 10 posts per month in total. If…
- [R] [reddit-saas] Practical payments platform suggestion! — https://www.reddit.com/r/SaaS/comments/1uv4uy0/practical_payments_platform_suggestion/ — I have built the product and already have 5 people using it. Currently, I have manually managed that, but now that I need to la…
- [R] [gh-n8n] [email protected] — https://github.com/n8n-io/n8n/releases/tag/n8n%401.123.65 — n8n 1.123.65 is a single webhook-error fix release, not a broad workflow shift.
- [R] [gh-nextjs] v16.3.0-canary.84 — https://github.com/vercel/next.js/releases/tag/v16.3.0-canary.84 — Next.js canary request-insights plumbing is too incremental for the morning bar.
- [P] [hn-top] GhostLock, a stack-UAF that has existed in all Linux distributions for 15 years — https://nebusec.ai/research/ionstack-part-2/ — GhostLock is a 15-year Linux kernel stack-UAF with a published local root/container-escape path; patch current kernels quickly.