Awesome List Updates on Jun 06, 2025

8 awesome lists updated today.

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1. Awesome Falsehood

Software Engineering

• Falsehoods about authorization - Misconceptions about implementing permissions systems.

2. Awesome Billing

Pricing / Strategy

• The Anatomy of SaaS Pricing Strategy - Explain how to articulate the pricing of SaaS businesses around the product strategy.

Marketplace / Market Research

• Vickrey auction - Hinted by an HN comment, in which yes, “‘Asking people what they'd pay for and how much rarely works.’ (…) [but] using a Vickrey auction, similar to Google's ad auction mechanism, can elicit a person's maximum willingness-to-pay.”

• How to Kickstart and Scale a Marketplace Business: Constrain the marketplace; Decide which side of the marketplace to concentrate on; Drive initial supply; Drive initial demand. A 4-parts series with dozen of interviews of people with direct experience building and scaling marketplaces.

Marketplace / Cloud Resources

• Deconstructing Amazon EC2 Spot Instance Pricing - “Cloud providers possessing large quantities of spare capacity must either incentivize clients to purchase it or suffer losses. Amazon is the first cloud provider to address this challenge, by allowing clients to bid on spare capacity and by granting resources to bidders while their bids exceed a periodically changing spot price.”

Contracts / Currencies

• CUDs vs. Commit Contracts vs. SUDs in Google Cloud - Explains the differences between various types of discounts and usage commitments in GCP.

Business Intelligence / Customer Lifetime Value

• Churn Prediction - “How to use Python in a simplistic way to fuel your company's growth by applying the predictive approach to all your actions.” Relies on XGBoost binary classification.

History / Cloud providers

• £sd computing - The IBM 1401 mainframe (1959) optionally supported pounds/shillings/pence (£sd) currency arithmetics in hardware.

3. Free for Dev

Tools for Teams and Collaboration

• Fibo - A free online realtime scrum poker tool for agile teams that lets unlimited members estimate story points for faster planning.

Messaging and Streaming

• SuprSend - SuprSend is a notification infrastructure that streamlines your product notifications with an API-first approach. Create and deliver transactional, crons, and engagement notifications on multiple channels with a single notification API. In free plan you get 10,000 notifications per month, including different workflow nodes such as digests, batches, multi-channels, preferences, tenants, broadcasts and more.

4. Awesome Cl

CSV

• ⭐ cl-csv (⭐124) - A library for parsing CSV files. 3-clause BSD.
  • documentation (⭐124)
  • example blog post.

• cl-decimals (⭐21) - Decimal number parser and formatter. Public domain.

• auto-text (⭐11) - automatic (encoding, end of line, column width, csv delimiter etc) detection for text files. MIT. See also inquisitor (⭐34) for detection of asian and far eastern languages.

• csv-validator (⭐5) - Validates tabular CSV data using predefined validations, inspired from its Python homologue "Great Expectations". BSD_3Clause.

JSON

• 👍 jzon (⭐167) - a correct, safe and fast JSON parser. MIT.
  • jzon is the only CL JSON library which correctly declines all invalid inputs per the official JSON test suite and accepts all valid inputs per that suite.
  • it doesn't crash on invalid input (jsown), doesn't choke on large datasets (Jonathan), and more.
  • v1.0 released in the Quicklisp dist of February, 2023.
  • "I believe jzon to be the superior choice and hope for it to become the new, true de-facto library in the world of JSON-in-CL once and for all."

• shasht (⭐55) - Common Lisp JSON reading and writing for the Kzinti. MIT.
  • "Shasht is one of the two new libraries that I particularly like and is already in quicklisp. It is fast, it handles null correctly, it encodes CLOS objects, structures and hash-tables. It can also do incremental encoding." Sabra Crolleton.

• cl-json (⭐13) - A highly customizable JSON encoder and decoder. MIT.
  • "cl-json and yason are still the work horses if you need fine control, but speed is not their forte." @sabracrolleton

• parcom/json (⭐65) - An extension to parcom for simple, fast, no-dependency JSON parsing.

• NJSON (⭐21) - Parser-agnostic JSON indexing (with JSON Pointer support), destructuring, and validation framework. BSD.

• json-mop (⭐63) - A metaclass for bridging CLOS and JSON objects. MIT.
  • depends on YASON
  • for JSON libraries that don't do it natively (jzon, shasht and cl-json are able to encode CLOS objects to JSON out of the box, and cl-json has the ability to decode JSON objects into a "fluid-class" CLOS object.)

• cl-json-pointer (⭐13) - A JSON Pointer implementation. MIT.

• cl-jwk (⭐17) - Common Lisp system for decoding public JSON Web Keys (JWK). BSD License.

• JOSE (⭐35) - A JSON Object Signing and Encryption (JOSE) implementation for Common Lisp. BSD_2Clause.

TOML

• parcom/toml (⭐65) - An extension to parcom for simple, no-dependency TOML parsing.

• clop (⭐23) - A 1.0-compliant TOML parser.

XML

• CXML - XML parser and serializer, with a range of extension libraries. LLGPL.
  • 👍 has an incremental parser, allowing to parse big files.
  • see the FXML (⭐33) fork, with fixes and new features. You should use it if your are parsing potentially ill-formed or malicious XML, or if you need to use Klacks with namespaces.

• parcom/xml (⭐65) - An extension to parcom for simple, fast XML parsing.

• xpath (⭐10) (homepage - Implementation of the XML Path Language (XPath) Version 1.0. BSD_2Clause.

• s-xml - A basic parser. LLGPL.

• xmls (⭐20) - A small, simple, non-validating XML parser. 3-clause BSD.

• cl-feedparser (⭐27) - A Common Lisp (RSS, Atom) feed parser. LLGPL

• Buildnode (⭐19) - A common lisp library to ease interaction with CXML-dom, such as building Excel spreadsheets. BSD.

• lisp-xl (⭐31) - Common Lisp Microsoft XLSX (Microsoft Excel) loader for arbitrarily-sized / big-size files. MIT.

• xlsx - a basic reader for Excel files.

YAML

• 👍 cl-yaml - a YAML parser and emitter built on top of libyaml. MIT.
  • an active fork: cl-RemiYaml with a few fixes. Not a drop-in replacement.

• nyaml (⭐28) - A lisp native YAML parser. MIT.

• cl-yacclyaml (⭐15) - a pure lisp YAML processor (loader, but not yet dumper). GPL3.

Apps / Third-party APIs

• parcom (⭐65) - Simple parser combinators for Common Lisp, in the style of Haskell’s parsec and Rust’s nom. MPL-2.0.

5. Awesome Playcanvas

3D Gaussian Splatting / YouTube Playables

• 4DV - Impressive implementation of animated Gaussian splats (4DGS).

• The Season - Real estate visualization of a modern apartment block.

6. Awesome Developer First

Monitoring

• Maxim AI - End-to-end evaluation and observability platform, helping teams ship their AI agents reliably and 5x faster.

7. Awesome Agi Cocosci

Domain Specific Language / Design Practises

• A Taxonomy of Domain-Specific Aspect Languages - ACM Computing Surveys, 2015. [All Versions]. Domain-Specific Aspect Languages (DSALs) are Domain-Specific Languages (DSLs) designed to express crosscutting concerns. Compared to DSLs, their aspectual nature greatly amplifies the language design space. This survey structures this space in order to shed light on and compare the different domain-specific approaches to deal with crosscutting concerns. This survey reports on a corpus of 36 DSALs covering the space, discuss a set of design considerations, and provide a taxonomy of DSAL implementation approaches. This work serves as a frame of reference to DSAL and DSL researchers, enabling further advances in the field, and to developers as a guide for DSAL implementations.

8. Awesome Angular

General / Google Developer Experts

• angular-template-signal-forms (⭐4) - A modern Angular form library built from the ground up with Signals — flexible, type-safe, and fully themeable.

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