emre şahin's digital garden 🍃 - bits

bits 21

Emre Şahin — 2025-09-28T18:00:14+00:00

I wanted to get the number of word changes between commits in my blog. I asked for a git-diff-based Nushell pipeline from Gemini.

Gemini proposed this:

git diff --word-diff=plain -- "*.md" | rg -o '\{\+(.*?)\+\}' | str replace -r '\{\+|\+\}' '' | str join " " | str words | length

What I ended up doing:

git diff --word-diff=plain -- "*.md" | rg -o '\{\+(.*?)\+\}' | str replace -a "{+" "" | str replace -a "+}" "" | str replace -a ' ' "\n" | lines | length

I notice LLMs tend to err on the side of complexity. I don’t know if this is due to their training to spit out as many tokens as possible, but using regular expressions when a simple string replacement may suffice is a good sign that they may be adding more complexity than necessary.

bits 20

Emre Şahin — 2025-09-28T17:52:31+00:00

I wanted to get the number of word changes between commits in my blog. I asked for a git-diff-based Nushell pipeline from Gemini.

Gemini proposed this:

git diff --word-diff=plain -- "*.md" | rg -o '\{\+(.*?)\+\}' | str replace -r '\{\+|\+\}' '' | str join " " | str words | length

What I ended up doing:

git diff --word-diff=plain -- "*.md" | rg -o '\{\+(.*?)\+\}' | str replace -a "{+" "" | str replace -a "+}" "" | str replace -a ' ' "\n" | lines | length

bits 19

Emre Şahin — 2025-09-28T17:42:11+00:00

I wanted to get the number of word changes between commits in my blog. I asked for a git-diff-based Nushell pipeline from Gemini.

Gemini proposed this:

git diff --word-diff=plain -- "*.md" | rg -o '\{\+(.*?)\+\}' | str replace -r '\{\+|\+\}' '' | str join " " | str words | length

What I ended up doing:

git diff --word-diff=plain -- "*.md" | rg -o '\{\+(.*?)\+\}' | str replace -a "{+" "" | str replace -a "+}" "" | str replace -a ' ' "\n" | lines | length

bits 18

Emre Şahin — 2025-09-28T17:22:48+00:00

I wanted to get the number of word changes between commits in my blog. I asked for a git-diff-based Nushell pipeline from Gemini.

Gemini proposed this:

git diff --word-diff=plain -- "*.md" | rg -o '\{\+(.*?)\+\}' | str replace -r '\{\+|\+\}' '' | str join " " | str words | length

What I ended up doing:

git diff --word-diff=plain -- "*.md" | rg -o '\{\+(.*?)\+\}' | str replace -a "{+" "" | str replace -a "+}" "" | str replace -a ' ' "\n" | lines | length

bits 16

Emre Şahin — 2025-09-28T17:15:52+00:00

I wanted to get the number of word changes between commits in my blogs. I asked for a git diff based nushell pipeline from Gemini:

Gemini proposed this:

git diff --word-diff=plain -- "*.md" | rg -o '\{\+(.*?)\+\}' | str replace -r '\{\+|\+\}' '' | str join " " | str words | length

What I ended up doing:

git diff --word-diff=plain -- "*.md" | rg -o '\{\+(.*?)\+\}' | str replace -a "{+" "" | str replace -a "+}" "" | str replace -a ' ' "\n" | lines | length

I notice LLMs tend to err on the side of complexity. I don’t know if this is due to their training to spit as many tokens as possible, but using regular expressions when a simple single replace may suffice is a good sign that they may be adding more complexity than necessary.

bits 15

Emre Şahin — 2025-03-27T09:52:06+00:00

How to use a Python virtual environment with Nushell:

virtualenv .venv
overlay use .venv/bin/activate.nu

Bits 9

Emre Şahin — 2024-05-24T21:02:38+00:00

I have quite a few LazyVim plugins, but this simple keymapping makes my life much easier:

vim.keymap.set({ "n", "i" }, "", 'yy:r!"')

I type a command, like ls, on a line and hit . That line is copied, executed, and the output is read into the buffer just below it.

I use it for all sorts of tasks, from listing open PRs with gh to fetching website text with w3m. It has significantly improved my workflow, allowing me to use the shell effectively within textual notebooks.

bits 6

Emre Şahin — 2024-05-23T16:33:49+00:00

We’re using Graphite at work. Today, I configured a tmux shortcut to open a new pane and run gt create, which creates a new branch and commits all staged Git files.

bind-key -n S-F12 split-window -h -c "#{pane_current_path}" "gt c"

I just hit Shift-F12, and it opens a new pane in the current directory and runs the command.

bits 7

Emre Şahin — 2024-05-23T16:33:49+00:00

I noticed it’s not possible to unmap the F1 key in Neovim using vim.api.nvim_del_keymap if it’s not already registered. Instead, you can simply override it with something like:

vim.keymap.set({ "n" }, "", ":Telescope buffers", { noremap = true, desc = "Find buffer" })

Bits 8

Emre Şahin — 2024-05-23T16:33:49+00:00

Using ENV.fetch("MY_ENV_VAR", default_value) is preferred over ENV["MY_ENV_VAR"] for specifying default values. While it is similar to ENV["MY_ENV_VAR"] || default_value, fetch is more explicit and idiomatic in Ruby.

bits 5

Emre Şahin — 2023-03-14T11:24:00+00:00

I found a little tool where you describe a diagram in plain text, and it draws it. It likely uses a ChatGPT-to-Mermaid converter.

bits 4

Emre Şahin — 2023-03-14T11:19:00+00:00

I want to use channels for Xvc pipelines. A thread will be created for each step and will receive dependency state changes via channels.

Note that there may be thousands of dependencies (e.g., files for a step), and creating these channels beforehand is not feasible.

The Crossbeam library has Select which allows waiting for an arbitrary number of channels. Now, I need to figure out how to structure the threads and update their states. A minor task! 😆

bits 3

Emre Şahin — 2023-03-14T11:07:00+00:00

I noticed a channel library that predates crossbeam in Rust. It’s called comm, and the code was last updated eight years ago.

bits 2

Emre Şahin — 2023-03-14T10:58:00+00:00

We are using a vector database for semantic search. Currently, we employ Pinecone for vector search.

I noticed there is an open-source vector database called Qdrant (pronounced quadrant) that can replace it.

There are other options like pgvector for PostgreSQL.

Find Which Process is Listening on a Port

Emre Şahin — 2023-03-14T10:45:00+00:00

Sometimes I need to find out which process is listening on a specific port, usually so I can kill it.

On macOS:

sudo lsof -i -P | grep LISTEN | grep :$PORT

And on Linux:

netstat -pntl | grep $PORT

bits 1

Emre Şahin — 2023-03-14T10:39:00+00:00

I began to explore the terrain for a Word plugin for the company I’m working at.

Although there is a common format for the manifest file, Outlook and Word add-ins seem to require separate files. I haven’t seen any add-in in AppSource that serves as both a Word and an Excel add-in.
Microsoft provides a tool called Script Lab that allows you to run arbitrary scripts and test APIs directly within Office.
For authentication, it is recommended to open a browser window to your web app using the Dialog API.
It is usually not possible to use iframes to obtain authentication tokens from the task pane or sidebar itself. See this answer for more details.
It is possible to add elements to the right-click menu in Word for add-in commands.