Open source Optimizely alternatives

Launch HN: PostHog (YC W20) – open-source product analytics

“I'm curious as to how you plan to scale PostHog to larger users. As the person who scaled Heap, here is my honest opinion of this. I think there is going to be a huge challenge ahead in scaling query performance. This was perpetually a challenge at Heap and was for a long time…”

Launch HN: PostHog (YC W20) – open-source product analytics

“Just yesterday I discussed a blog post that I have on my mind, with somebody from dbt, on the rise of the open source analytics stack. there's a bunch of great hosted tools out there, across ETL, workflows, dashboards, etc. Think Fivetran, Segment, Matillion, Periscope, etc. And…”

Launch HN: GrowthBook (YC W22) – Open-source feature flagging and A/B testing

“Tools like Flagr typically function as a microservice that handles all of the feature evaluation. That means you need a network request every time you want to get a feature's value. With GrowthBook, there's a single cacheable JSON definition of all of the features and then…”

Launch HN: GrowthBook (YC W22) – Open-source feature flagging and A/B testing

“Thanks for the suggestion. We added MySQL support so we can work with Matomo now, but we're definitely lacking in documentation and tutorials. There's a similar issue with people using GA4, Snowplow, Segment, and anything else with a pre-defined schema. It should be way easier…”

Show HN: Flagsmith – open-source feature flag and remote config service

“Hi Everyone. I started a London-based software agency back in 2001. We felt a lot of pain dealing with engineering teams of all shapes and sizes when devs were trying to release major changes without breaking anything. We spent a lot of time understanding why shipping is so…”

Add configurable announcement feature

“### Is your feature request related to a problem? Please describe. We need a way to show a targeted announcement banner on the Flagsmith dashboard ### Describe the solution you'd like. As a Flagsmith team member I would like to configure an announcement banner via Flagsmith…”

Insecure vehicles should be banned, not security tools like the Flipper Zero

“"Who says that? Anything can be a useful utility in the right time and in the right hands for a specific purpose. Maybe one tool is useless to you, while useful to another. Some people might use it to store hundreds of keyfobs, so instead of carrying all the hardware for each,…”

Insecure vehicles should be banned, not security tools like the Flipper Zero

“> FZ is intended to clone keys and bypass security I'd say it's more of an educational/'hacker' toy than it is a useful security bypasser/key cloner. Purpose built(and better aot their job) those things cost significantly less. The flipper zero is a toy that the Canadian…”

👀 Open pull request on open feature contrib repositories

“# Open Feature Provider pull requests 👀 This issues is the result of an automated process to look if there is anything related to GO Feature Flag open in the different Open Feature Contrib repos. 🙏 Please close this issue when everything is merged. ## Pull requests ###…”

👀 Open pull request on open feature contrib repositories

“# Open Feature Provider pull requests 👀 This issues is the result of an automated process to look if there is anything related to GO Feature Flag open in the different Open Feature Contrib repos. 🙏 Please close this issue when everything is merged. ## Pull requests ###…”

OpenFeature – a vendor-agnostic, community-driven API for feature flagging

“Speaking as an open-source feature flag 'vendor' ( ), the OpenFeature organization has been a joy to work with. They are very welcoming of new contributors (e.g., implementing a provider SDK in a new language). If you're interested in this space I'd recommend lurking in their…”

OpenFeature – a vendor-agnostic, community-driven API for feature flagging

“I am looking to maybe support this in probably via (I don't have time to maintain a bunch of providers). We are evaluating new solutions at work and OpenFeature is something we're interested in. (I did the home grown solution that's in use by one product line)”

Show HN: Featurevisor – Git-based feature flags and experiments management

“it's one of the first things that a data scientist friend of mine asked. Featurevisor SDK is stateless, in the sense that it evaluates features against given attributes and the content of the currently parsed datafile. if we want to have native support of exclusions in the SDK,…”

Show HN: Featurevisor – Git-based feature flags and experiments management

“thank you! I have just announced the React integration here: You can find more docs here: I will explore NextJS and how Featurevisor can be utilized at both SSR and SSG level as well. While of course working on adding more tests, and tagging a v1.0 stable release soon. Regarding…”