June 27, 2026

# Nightly Librarian — Newsletter draft

Run: 10b0e2ab-7338-47cd-8fea-21b53293dfb4
Started: 2026-06-27T11:02:04.637Z
Completed: 2026-06-27T11:07:13.037Z

## Worth attention

- **I ran my own startup through ChatGPT, Gemini and Perplexity to see if they recommend it. 0 mentions out of 90.**
  https://www.reddit.com/r/SaaS/comments/1ug16fy/i_ran_my_own_startup_through_chatgpt_gemini_and/
  A founder’s 90-prompt test suggests AI recommendations track review sites, YouTube, and Reddit more than SEO blog content.
- **All you need is PostgreSQL**
  https://ebellani.github.io/blog/2026/all-you-need-is-postgresql/
  A detailed Postgres 18 essay argues that audit trails, state machines, and mixed OLTP/OLAP workloads often do not need extra infra.
- **1.15.1**
  https://github.com/crewAIInc/crewAI/releases/tag/1.15.1
  CrewAI 1.15.1 says it fixes an SSRF redirect bypass in scraping fetches and tightens project-generation behavior.
- **Show HN: DBOSify – Drop-in Temporal replacement built on Postgres**
  https://github.com/dbos-inc/dbosify-py
  DBOSify pitches itself as a Temporal Python drop-in backed by Postgres, with retries, recovery, and workflow primitives.
- **Show HN: Smart model routing directly in Claude, Codex and Cursor**
  https://github.com/workweave/router
  Weave open-sourced a coding-agent model router for Claude Code, Codex, and Cursor that claims 40-70% token savings.

## Full digest

- [R] [gh-composio] CLI Beta @composio/cli@0.2.32-beta.276 — https://github.com/ComposioHQ/composio/releases/tag/%40composio/cli%400.2.32-beta.276 — ## What's Changed * docs: featured examples gallery + fix title selection by @CryogenicPlanet in * Add tool router session deletion…
- [R] [gh-composio] CLI Beta @composio/cli@0.2.32-beta.275 — https://github.com/ComposioHQ/composio/releases/tag/%40composio/cli%400.2.32-beta.275 — ## What's Changed * chore(python): release 0.17.0 by @CryogenicPlanet in * chore(ts): quiet tsdown build warnings by @jkomyno in **…
- [R] [reddit-saas] After ~20 SaaS projects over 10 years, I made $6k in 30 days — https://www.reddit.com/r/SaaS/comments/1ug0qh8/after_20_saas_projects_over_10_years_i_made_6k_in/ — My app recently hit $6k over a 30-day period. Here’s my “one-night success story” 🤣 I ve been building products since 2016 and lau…
- [R] [reddit-saas] The barrier to shipping software is basically zero now — https://www.reddit.com/r/SaaS/comments/1ug27lj/the_barrier_to_shipping_software_is_basically/ — Anyone can build and launch a SaaS in a weekend. That sounds like a good thing, but it isn t always. Here’s how the software landsc…
- [R] [reddit-saas] Tell me how did you get you're first paying real customer — https://www.reddit.com/r/SaaS/comments/1ug1suw/tell_me_how_did_you_get_youre_first_paying_real/ — Just soft-launched our product. In a nutshell, it’s run planning software. ICP: advanced self-coached runners and coaches. The chal…
- [R] [reddit-saas] In SaaS, over-delivering to your early customers matters a lot — https://www.reddit.com/r/SaaS/comments/1ug1mmv/in_saas_overdelivering_to_your_early_customers/ — Your early customers are the foundation of your SaaS business. If your product consistently over-delivers and solves their problems…
- [R] [reddit-saas] Mentally dealing with churn - a kick in the gut — https://www.reddit.com/r/SaaS/comments/1ug15q4/mentally_dealing_with_churn_a_kick_in_the_gut/ — Over the one year since I’ve monetized my SaaS, there is one action that brings me down and makes me question everything, without f…
- [M] [reddit-saas] I ran my own startup through ChatGPT, Gemini and Perplexity to see if they recommend it. 0 mentions out of 90. — https://www.reddit.com/r/SaaS/comments/1ug16fy/i_ran_my_own_startup_through_chatgpt_gemini_and/ — A founder’s 90-prompt test suggests AI recommendations track review sites, YouTube, and Reddit more than SEO blog content.
- [R] [reddit-saas] Need help — https://www.reddit.com/r/SaaS/comments/1ug33hl/need_help/ — I built this, and yeah, the landing page isn t my best work. Bit ironic that I m not eating my own dogfood here. It s on my list to…
- [R] [reddit-saas] The Ikea mindset — https://www.reddit.com/r/SaaS/comments/1ug2sxx/the_ikea_mindset/ — I ve been thinking about something as AI SaaS products keep popping up every day. It feels like people have more choices than ever,…
- [R] [reddit-saas] How we can get our first costumers for our online SaaS — https://www.reddit.com/r/SaaS/comments/1ug2mi2/how_we_can_get_our_first_costumers_for_our_online/ — For the past months, we have been building SleekMeeting, an AI meeting assistant for people who spend too much of their life in cal…
- [R] [reddit-saas] I made a tool that finds what's going viral on social media — https://www.reddit.com/r/SaaS/comments/1ug2hj5/i_made_a_tool_that_finds_whats_going_viral_on/ — I do a lot of short-form / faceless marketing, and for ages my whole system was basically scrolling for hours, saving reels I liked…
- [R] [reddit-saas] Early retirement?? — https://www.reddit.com/r/SaaS/comments/1ug1qyz/early_retirement/ — Its easy to dream of retiring early when in the process of finally building out your business ideas thanks to more easily accessibl…
- [R] [reddit-saas] Help me use up my Claude Max tokens before they reset 😅 — https://www.reddit.com/r/SaaS/comments/1ug12tz/help_me_use_up_my_claude_max_tokens_before_they/ — I ve barely used Claude Max this week, and my quota resets in 2 days. Give me your best ideas, things to build, automate, research,…
- [R] [lobsters] What are you doing this weekend? — https://lobste.rs/s/dpctyb/what_are_you_doing_this_weekend — Feel free to tell what you plan on doing this weekend and even ask for help or feedback. Please keep in mind it’s more than OK to d…
- [P] [lobsters] All you need is PostgreSQL — https://ebellani.github.io/blog/2026/all-you-need-is-postgresql/ — A detailed Postgres 18 essay argues that audit trails, state machines, and mixed OLTP/OLAP workloads often do not need extra infra.
- [R] [lobsters] Chatbots vs Ozone — https://blog.dshr.org/2026/05/chatbots-vs-ozone.html — Comments
- [R] [hn-top] We All Depend on Open Source. We Will Defend It Together — https://akrites.org/letter/ — We All Depend on Open Source. We Will Defend It Together
- [R] [hn-top] 22-year-old Mozart's handwritten notebook unearthed in 'major discovery' — https://www.classicfm.com/composers/mozart/handwritten-notebook-discovered-major-paris/ — 22-year-old Mozart's handwritten notebook unearthed in 'major discovery'
- [R] [hn-top] Doing a masters while working in Spain — https://jan-herlyn.com/blog/doing-a-masters-while-working/ — Doing a masters while working in Spain
- [R] [hn-top] You can't unit test for taste — https://dev.karltryggvason.com/you-cant-unit-test-for-taste/ — You can't unit test for taste
- [R] [hn-top] The disappearance of Japan's animators — https://economist.com/interactive/1843/2026/06/19/the-strange-disappearance-of-japans-animators — https: archive.ph aPMAr
- [R] [gh-langchain] langchain-anthropic==1.4.8 — https://github.com/langchain-ai/langchain/releases/tag/langchain-anthropic%3D%3D1.4.8 — LangChain Anthropic 1.4.8 looks like a small bug-fix release, including initial text handling on content_block_start.
- [P] [gh-crewai] 1.15.1 — https://github.com/crewAIInc/crewAI/releases/tag/1.15.1 — CrewAI 1.15.1 says it fixes an SSRF redirect bypass in scraping fetches and tightens project-generation behavior.
- [R] [gh-crewai] 1.15.1a1 — https://github.com/crewAIInc/crewAI/releases/tag/1.15.1a1 — CrewAI 1.15.1a1 previewed the same fixes, including the later SSRF redirect-bypass patch.
- [R] [gh-composio] @composio/slim@0.13.1 — https://github.com/ComposioHQ/composio/releases/tag/%40composio/slim%400.13.1 — @composio/slim@0.13.1
- [R] [gh-composio] @composio/vercel@0.11.0 — https://github.com/ComposioHQ/composio/releases/tag/%40composio/vercel%400.11.0 — Composio Vercel 0.11.0 adds AI SDK 7 support and drops AI SDK 5 support.
- [R] [gh-composio] @composio/mastra@0.10.1 — https://github.com/ComposioHQ/composio/releases/tag/%40composio/mastra%400.10.1 — Composio Mastra 0.10.1 widens its supported @mastra/core peer dependency range.
- [R] [gh-composio] @composio/core@0.13.1 — https://github.com/ComposioHQ/composio/releases/tag/%40composio/core%400.13.1 — Composio core 0.13.1 adds tool-router session deletion APIs.
- [R] [gh-composio] CLI Beta @composio/cli@0.2.32-beta.278 — https://github.com/ComposioHQ/composio/releases/tag/%40composio/cli%400.2.32-beta.278 — ## What's Changed * docs: update TypeScript SDK reference from source by @sdkrelease[bot] in * chore(agents): normalize repo guidan…
- [R] [gh-composio] CLI Beta @composio/cli@0.2.32-beta.277 — https://github.com/ComposioHQ/composio/releases/tag/%40composio/cli%400.2.32-beta.277 — ## What's Changed * fix(py): normalize generated SDK doc examples by @jkomyno in * chore(ts): bump Hono, Mastra, and Chrome deps by…
- [R] [hn-show] Show HN: Hacker News on a train station-style flip board — https://popflame.quickish.space/hn-flipboard/ — Although the page itself is more just fun to have made and look at (I like the flip sound), the fun part is how I made it to verify…
- [P] [hn-show] Show HN: DBOSify – Drop-in Temporal replacement built on Postgres — https://github.com/dbos-inc/dbosify-py — DBOSify pitches itself as a Temporal Python drop-in backed by Postgres, with retries, recovery, and workflow primitives.
- [P] [hn-show] Show HN: Smart model routing directly in Claude, Codex and Cursor — https://github.com/workweave/router — Weave open-sourced a coding-agent model router for Claude Code, Codex, and Cursor that claims 40-70% token savings.
- [R] [hn-show] Show HN: WebBase-III – dBASE III rebuilt in the browser with its own interpreter — https://github.com/DDecoene/WebBaseIII — Show HN: WebBase-III – dBASE III rebuilt in the browser with its own interpreter
- [R] [hn-show] Show HN: Overfitted a 900KB Transformer to Compress a 100MB CSV into 7MB — https://news.ycombinator.com/item?id=48644463 — I built an experiment that uses an overfitted transformer and arithmetic coding to compress individual files. Instead of training t…
- [R] [reddit-saas] Why is this so true? — https://www.reddit.com/r/SaaS/comments/1ug47cp/why_is_this_so_true/ — submitted by /u/pareshmukh [link] [comments]
- [R] [reddit-saas] Got my first paying customer today!!! — https://www.reddit.com/r/SaaS/comments/1ugi4vt/got_my_first_paying_customer_today/ — been building a booking/scheduling SaaS for small service businesses (salons, beauty studios, clinics) solo for months. Today a loc…
- [R] [reddit-saas] Looking for smart builders/developers to help us create a USA healthcare AI SaaS product. Budget around $200k. No big agency vibes, only real thinkers — https://www.reddit.com/r/SaaS/comments/1ugt0e7/looking_for_smart_buildersdevelopers_to_help_us/ — We re starting a new healthcare AI SaaS for the US market with around $200k budget. Not looking for big agencies or corporate teams…
- [R] [reddit-saas] I think I wasted 30k of my own money on my SaaS! — https://www.reddit.com/r/SaaS/comments/1ugomuc/i_think_i_wasted_30k_of_my_own_money_on_my_saas/ — To keep this concise I was working as a landlord and decided to make a rental inspection app because all the ones I tried were seve…