smunix / neuron

Haskell meets Zettelkasten, for your plain-text delight.

neuron

neuron is a future-proof command-line app for managing your plain-text Zettelkasten notes.

Features

• Extended Markdown for easy linking between zettels
• Web interface (auto generated static site)
• Graph view of zettels (folgezettel heterarchy)
• Hash-based note IDs

Getting started

See neuron.zettel.page for the full guide to installing and using neuron.

Developing

When modifying the source code, use bin/run (which uses ghcid) to test your changes in real-time:

bin/run -d $(pwd)/guide rib -wS

This command automatically recompiles and restarts when you change any of the Haskell source files, as well run site generation on the given Zettelkasten. You can pass the same neuron arguments to bin/run. This is essentially equivalent to running development version of neuron with instant reload.

Running tests

Unit tests can be run via ghcid as follows:

bin/test

Developing on reflex-dom-pandoc

Neuron delegates HTML rendering of the Pandoc AST to reflex-dom-pandoc. To hack on it, first install Obelisk and then:

# This will clone the git repo of reflex-dom-pandoc at dep/reflex-dom-pandoc
ob thunk unpack dep/reflex-dom-pandoc

# Let's work on that repo
cd dep/reflex-dom-pandoc

# Run ghcid (using neuron's nix config)
nix-shell ../../shell.nix --run ghcid

Now as you edit the reflex-dom-pandoc sources, ghcid should give you compiler feedback. Once you are done with your changes, simply re-run neuron's ghcid or bin/run (see further above) and it should reflect your changes.

When you are done, commit your changes to reflex-dom-pandoc (presumably in a branch) and then git push it. Finally, you must "pack" the thunk and commit the changes to the neuron repo:

cd ../..  # Back to neuron
rm -rf dep/reflex-platform/dist-newstyle # cleanup build artifacts before packing
ob thunk pack dep/reflex-dom-pandoc
git add dep/reflex-dom-pandoc