--- title: Best Pointer posts — June 2023 | daily.dev description: The most upvoted Pointer posts from June 2023, curated by the daily.dev community. canonical: https://daily.dev/sources/pointer/best-of/2023/06 twitter:card: summary_large_image twitter:site: @dailydotdev og:url: https://daily.dev/sources/pointer/best-of/2023/06 og:type: website og:site_name: daily.dev og:title: Best Pointer posts — June 2023 | daily.dev og:description: The most upvoted Pointer posts from June 2023, curated by the daily.dev community. og:image: https://media.daily.dev/image/upload/s--VAY5ToZt--/f_auto/v1724209435/public/daily.dev%20-%20open%20graph --- # Best of Pointer — June 2023 1. 1 [](https://daily.dev/posts/making-python-100x-faster-with-less-than-100-lines-of-rust-2zkf93a0o "Making Python 100x faster with less than 100 lines of Rust") Article Pointer · 3y Making Python 100x faster with less than 100 lines of Rust A while ago at $work, we had a performance issue with one of our core Python libraries. We had to make our system at least 50 times faster to handle the increased workload. The key difficulty (performance wise) is this mix of Python objects and numpy arrays. We are going to analyze this in depth in a minute. 42 4 2. 2 [](https://daily.dev/posts/fern-api-fern-generate-sdks-client-libraries-for-your-api-onltoaplc "fern-api/fern: Generate SDKs (client libraries) for your API") Article Pointer · 3y fern-api/fern: Generate SDKs (client libraries) for your API GitHub - fern-api/fern: Generate SDKs (client libraries) for your API Fern is an open source format for defining REST APIs. You can think of it like a programming language to describe your API: your endpoints, types, errors, and examples. This repository contains the Fern compiler. 41 3. 3 [](https://daily.dev/posts/antonosika-gpt-engineer-specify-what-you-want-it-to-build-the-ai-asks-for-clarification-and-then--gesoz7zkh "AntonOsika/gpt-engineer: Specify what you want it to build, the AI asks for clarification, and then builds it.") Article Pointer · 3y AntonOsika/gpt-engineer: Specify what you want it to build, the AI asks for clarification, and then builds it. GPT Engineer is made to be easy to adapt, extend, and make your agent learn how you want your code to look. It generates an entire codebase based on a prompt. The AI asks for clarification, and then builds it. It can be rerun with scripts/rerun\_edited\_message\_logs. 36 4. 4 [](https://daily.dev/posts/undb-xyz-undb-private-first-unified-self-hosted-no-code-database--tefunfepo "undb-xyz/undb: 🚀 Private first, unified, self-hosted no code database.") Article Pointer · 3y undb-xyz/undb: 🚀 Private first, unified, self-hosted no code database. undb-xyz/undb is open-source under the GNU Affero General Public License Version 3 (AGPLv3) You'll need a render account to deploy your own undb instance Deploy with Railway Contribution Checkout documentation. 35 5. 5 [](https://daily.dev/posts/unleash-open-source-feature-flags-solution-for-developers-i2r89xqmi "Unleash: Open-Source Feature Flags Solution for Developers") Article Pointer · 3y Unleash: Open-Source Feature Flags Solution for Developers Unleash is an open source feature flag management solution built for developers to safely deliver and rollback features to the users you choose, fast. Unleash has been ranked as a High Performer in G2’s Summer 2023 reports for the top Feature Management Software. 29 6. 6 [](https://daily.dev/posts/vercel-labs-ai-build-ai-powered-applications-with-react-svelte-and-vue-jslnwcyz2 "vercel-labs/ai: Build AI-powered applications with React, Svelte, and Vue") Article Pointer · 3y vercel-labs/ai: Build AI-powered applications with React, Svelte, and Vue The Vercel AI SDK is a library for building edge-ready AI-powered streaming text and chat UIs. Features SWR-powered React, Svelte and Vue helpers for streaming text responses and building chat. First-class support for LangChain and OpenAI, Anthropic, and HuggingFace Edge. 21 7. 7 [](https://daily.dev/posts/axllent-mailpit-an-email-and-smtp-testing-tool-with-api-for-developers-sap70wbn3 "axllent/mailpit: An email and SMTP testing tool with API for developers") Article Pointer · 3y axllent/mailpit: An email and SMTP testing tool with API for developers Mailpit is a multi-platform email testing tool & API for developers. It acts as both an SMTP server and provides a web interface to view all captured emails. The Mailpit web UI listens by default on, and the SMTP port on. 18 8. 8 [](https://daily.dev/posts/mintplex-labs-anything-llm-a-full-stack-application-that-turns-any-documents-into-an-intelligent-ch-xmjbznn9h "Mintplex-Labs/anything-llm: A full-stack application that turns any documents into an intelligent chatbot with a sleek UI and easier way to manage your workspaces.") Article Pointer · 3y Mintplex-Labs/anything-llm: A full-stack application that turns any documents into an intelligent chatbot with a sleek UI and easier way to manage your workspaces. AnythingLLM is a full-stack application that turns any document, resource, or piece of content into a piece of data that any LLM can use as reference during chatting. This application runs with very minimal overhead as by default the LLM and vectorDB are hosted remotely, but can be swapped for local instances. 16 9. 9 [](https://daily.dev/posts/the-surprising-power-of-documentation-ukgkvrhng "The Surprising Power of Documentation") Article Pointer · 3y The Surprising Power of Documentation Every hour invested into documentation by anyone saves literally x100 productivity hours across the company. Documentation is your secret weapon, the unsung hero of your startup, the gray knight. It eradicates guesswork and reinvention of the wheel. 16 [See all Pointer archives](/sources/pointer/best-of) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@graph":[{"@type":"CollectionPage","@id":"https://daily.dev/sources/pointer/best-of/2023/06#page","url":"https://daily.dev/sources/pointer/best-of/2023/06","name":"Best Pointer Posts — June 2023","description":"The most upvoted Pointer posts from June 2023, curated by the daily.dev community.","isPartOf":{"@type":"WebSite","url":"https://daily.dev"}},{"@type":"ItemList","@id":"https://daily.dev/sources/pointer/best-of/2023/06#items","numberOfItems":9,"itemListElement":[{"@type":"ListItem","position":1,"url":"https://daily.dev/posts/making-python-100x-faster-with-less-than-100-lines-of-rust-2zkf93a0o","name":"Making Python 100x faster with less than 100 lines of Rust"},{"@type":"ListItem","position":2,"url":"https://daily.dev/posts/fern-api-fern-generate-sdks-client-libraries-for-your-api-onltoaplc","name":"fern-api/fern: Generate SDKs (client libraries) for your API"},{"@type":"ListItem","position":3,"url":"https://daily.dev/posts/antonosika-gpt-engineer-specify-what-you-want-it-to-build-the-ai-asks-for-clarification-and-then--gesoz7zkh","name":"AntonOsika/gpt-engineer: Specify what you want it to build, the AI asks for clarification, and then builds it."},{"@type":"ListItem","position":4,"url":"https://daily.dev/posts/undb-xyz-undb-private-first-unified-self-hosted-no-code-database--tefunfepo","name":"undb-xyz/undb: 🚀 Private first, unified, self-hosted no code database."},{"@type":"ListItem","position":5,"url":"https://daily.dev/posts/unleash-open-source-feature-flags-solution-for-developers-i2r89xqmi","name":"Unleash: Open-Source Feature Flags Solution for Developers"},{"@type":"ListItem","position":6,"url":"https://daily.dev/posts/vercel-labs-ai-build-ai-powered-applications-with-react-svelte-and-vue-jslnwcyz2","name":"vercel-labs/ai: Build AI-powered applications with React, Svelte, and Vue"},{"@type":"ListItem","position":7,"url":"https://daily.dev/posts/axllent-mailpit-an-email-and-smtp-testing-tool-with-api-for-developers-sap70wbn3","name":"axllent/mailpit: An email and SMTP testing tool with API for developers"},{"@type":"ListItem","position":8,"url":"https://daily.dev/posts/mintplex-labs-anything-llm-a-full-stack-application-that-turns-any-documents-into-an-intelligent-ch-xmjbznn9h","name":"Mintplex-Labs/anything-llm: A full-stack application that turns any documents into an intelligent chatbot with a sleek UI and easier way to manage your workspaces."},{"@type":"ListItem","position":9,"url":"https://daily.dev/posts/the-surprising-power-of-documentation-ukgkvrhng","name":"The Surprising Power of Documentation"}]},{"@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Sources","item":"https://daily.dev/sources"},{"@type":"ListItem","position":3,"name":"Pointer","item":"https://daily.dev/sources/pointer"},{"@type":"ListItem","position":4,"name":"Best of","item":"https://daily.dev/sources/pointer/best-of"},{"@type":"ListItem","position":5,"name":"June 2023"}]}]} ```