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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
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conjure
Interactive evaluation for Neovim (Clojure, Fennel, Janet, Racket, Hy, MIT Scheme, Guile, Python and more!)
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
Racket is my favorite language. It's fast, practical, has solid foundations and an extremely nice concurrency story (based on concepts borrowed and extended from Concurrent ML). It has an excellent documentation system, with an integrated package ecosystem, which means that most packages have high quality documentation with cross-references. It has a great backwards-compatibility story -- a lot better than Python's, for example, which I use in my current dayjob. So, my impression of the commenters saying it's too academic or not practical is that they probably never dove deeply enough, or they are students who were only exposed to the teaching languages in the past. It's definitely not perfect: the community is small, the runtime has a high memory baseline, parallelism requires spinning up a Racket VM per system thread, among others, but these are things that will improve over time.
In the past several years, I've:
* built & run an e-commerce site written in Racket[1]
* built a native macOS and iOS reminders app, available on the App Store [2, 3, 4]
* built a cross-platform desktop client for Apache Kafka [5, 6, 7]
* built a `#lang` for Lua [8]
Among[9] other[10] things[11]. I think that's all pretty practical stuff!
[1]: https://defn.io/2019/08/20/racket-ecommerce/
[2]: https://defn.io/2020/01/02/ann-remember/
[3]: https://defn.io/2024/04/09/ann-remember-for-ios/
[4]: https://github.com/bogdanp/remember
[5]: https://defn.io/2022/11/20/ann-franz/
[6]: https://defn.io/2023/10/15/ann-franz-for-windows/
[7]: https://defn.io/2023/08/10/ann-franz-source-available/
[8]: https://defn.io/2022/11/12/ann-racket-lua/
[9]: https://docs.racket-lang.org/http-easy/index.html
[10]: https://docs.racket-lang.org/deta/index.html
[11]: https://docs.racket-lang.org/gui-easy/index.html
https://github.com/jpalardy/vim-slime
you can have a REPL in nvim/vim/tmux/screen/another terminal/or any other window , and send regions from your vim buffer to that repl