Octopus vs Monocle

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Octopus		Monocle
	Project
-	Mentions	5
150	Stars	1,629
-	Growth	0.2%
0.0	Activity	8.3
5 days ago	Latest Commit	1 day ago
Scala	Language	Scala
Apache License 2.0	License	MIT License

The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

Octopus

Posts with mentions or reviews of Octopus. We have used some of these posts to build our list of alternatives and similar projects.

We haven't tracked posts mentioning Octopus yet.
Tracking mentions began in Dec 2020.

Monocle

Posts with mentions or reviews of Monocle. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-04-12.

Ref in cats-effect. When should I use it, and when should I not?
1 project | /r/scala | 9 Jul 2022

Without concurrency, using a Ref doesn't buy you anything over just using a var. If you want the benefits of immutability with an API that resembles mutability, you have to use something like Monocle.
Show HN: Monocle – bidirectional code generation library
10 projects | news.ycombinator.com | 12 Apr 2022

A very popular Scala optics library is also called Monocle. I’ve been a happy user for a few years:
https://github.com/optics-dev/Monocle
Monocle 3 release candidate - a super useful and simple library for optics with poetic api
1 project | /r/scala | 1 Jun 2021

See example https://www.optics.dev/Monocle/
Monocle 3.0.0-M1 is released for Scala 2.13 and Scala 3
1 project | /r/scala | 19 Feb 2021
Monocle 3 Roadmap
3 projects | /r/scala | 21 Jan 2021

We always have work to do, for example to define scalfix rules to automate the migration https://github.com/optics-dev/Monocle/issues/1001

What are some alternatives?

When comparing Octopus and Monocle you can also consider the following projects:

Accord - Accord: A sane validation library for Scala

Quicklens - Modify deeply nested case class fields

Monkeytail

Shapeless - Generic programming for Scala

scommons-websql - Scala.js facade for WebSQL/SQLite API

Chimney - Scala library for boilerplate-free, type-safe data transformations

Veto - If you don't agree with the data

cats - Lightweight, modular, and extensible library for functional programming.

Dupin - Minimal, idiomatic, customizable validation Scala library.

Scalaz - Principled Functional Programming in Scala

form-binder - A micro data binding and validating framework, very easy to use and hack

Scala Graph - Graph for Scala is intended to provide basic graph functionality seamlessly fitting into the Scala Collection Library. Like the well known members of scala.collection, Graph for Scala is an in-memory graph library aiming at editing and traversing graphs, finding cycles etc. in a user-friendly way.