feat: initial release

.github/FUNDING.yml

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+github: swaits

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: bug
+assignees: ''
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior.
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Environment**
+- Neovim version:
+- OS:
+- Config (if relevant):

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: enhancement
+assignees: ''
+---
+
+**Is your feature request related to a problem?**
+A clear and concise description of what the problem is.
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Additional context**
+Add any other context about the feature request here.

.github/workflows/ci.yml

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+name: CI
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: JohnnyMorganz/stylua-action@v4
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          version: latest
+          args: --check lua/ plugin/
+
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install Neovim
+        run: |
+          wget -q https://github.com/neovim/neovim/releases/download/v0.12.0/nvim-linux-x86_64.appimage -O /tmp/nvim.appimage
+          chmod +x /tmp/nvim.appimage
+          /tmp/nvim.appimage --appimage-extract > /dev/null 2>&1
+          echo "$PWD/squashfs-root/usr/bin" >> $GITHUB_PATH
+      - name: Run tests
+        run: ./scripts/test.sh

.gitignore

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+*.swp
+*.swo
+*~
+.DS_Store
+tags
+deps/

CHANGELOG.md

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+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [0.1.0] - 2026-04-09
+
+### Added
+
+- Initial release
+
+[0.1.0]: https://github.com/swaits/tiny-spark.nvim/releases/tag/v0.1.0

LICENSE

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+MIT License
+
+Copyright (c) 2026 Stephen Waits
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# tiny-spark.nvim
+
+A tiny cursor jump animation for Neovim 0.12+. Flashes a brief highlight
+at the cursor position after large jumps.
+
+Zero config. ~55 lines of Lua.
+
+## Features
+
+- Brief flash at cursor position after jumping 5+ lines
+- Smooth fade-out animation via `winblend`
+- Configurable threshold, duration, width, and highlight group
+- Extremely lightweight — no dependencies, single timer
+- Works out of the box — no setup call required
+
+## Requirements
+
+- Neovim >= 0.12
+- A terminal that supports `winblend` (most modern terminals)
+
+## Installation
+
+Add to your `vim.pack.add()` call:
+
+```lua
+"https://github.com/swaits/tiny-spark.nvim",
+```
+
+## Configuration
+
+All options are optional. Call `setup()` only if you want to customize:
+
+```lua
+require("tiny-spark").setup({
+  threshold = 5,        -- minimum line distance to trigger
+  duration = 150,       -- fade duration in ms
+  width = 8,            -- flash width in columns
+  hl = "CurSearch",     -- highlight group
+})
+```
+
+## How it works
+
+On `CursorMoved`, the plugin compares the current cursor line to the
+previous one. If the distance exceeds the threshold, it opens a small
+floating window at the cursor position and fades it out by increasing
+`winblend` from 0 to 100 over the configured duration.
+
+## License
+
+[MIT](LICENSE)

doc/tiny-spark.txt

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+*tiny-spark.txt*  Cursor jump flash animation
+
+Author: Stephen Waits <https://github.com/swaits>
+License: MIT
+
+==============================================================================
+CONTENTS                                          *tiny-spark-contents*
+
+  1. Introduction ............................ |tiny-spark-introduction|
+  2. Configuration ........................... |tiny-spark-configuration|
+
+==============================================================================
+1. INTRODUCTION                                *tiny-spark-introduction*
+
+tiny-spark.nvim flashes a brief highlight at the cursor position after
+large jumps, making it easy for your eye to follow the cursor.
+
+==============================================================================
+2. CONFIGURATION                              *tiny-spark-configuration*
+
+                                                  *tiny-spark.setup()*
+setup({opts})
+
+    Optional. All options shown with defaults: >lua
+
+        require("tiny-spark").setup({
+          threshold = 5,     -- minimum line distance to trigger
+          duration = 150,    -- fade duration in ms
+          width = 8,         -- flash width in columns
+          hl = "CurSearch",  -- highlight group
+        })
+<
+    Fields: ~
+      {threshold}  (number) Minimum line jump to trigger flash. Default: 5
+      {duration}   (number) Fade-out duration in milliseconds. Default: 150
+      {width}      (number) Width of flash in columns. Default: 8
+      {hl}         (string) Highlight group. Default: "CurSearch"
+
+==============================================================================
+vim:tw=78:ts=8:ft=help:norl:

lua/tiny-spark/init.lua

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+local M = {}
+
+function M.setup(opts)
+  opts = opts or {}
+  local threshold = opts.threshold or 3
+  local duration = opts.duration or 50
+  local step = math.ceil(1000 / 60)
+  local prev = { 0, 0 }
+  local ns = vim.api.nvim_create_namespace("tiny-spark")
+
+  local trail_chars = opts.chars or { "░", "▒", "▓", "█" }
+  local palette = opts.palette
+    or {
+      { fg = "#552200" },
+      { fg = "#cc4400" },
+      { fg = "#ff8822" },
+      { fg = "#ffcc44" },
+      { fg = "#ffffff", bold = true },
+    }
+  for i, def in ipairs(palette) do
+    vim.api.nvim_set_hl(0, "TinySpark" .. i, def)
+  end
+
+  vim.api.nvim_create_autocmd("CursorMoved", {
+    group = vim.api.nvim_create_augroup("tiny-spark", { clear = true }),
+    callback = function()
+      local cur = vim.api.nvim_win_get_cursor(0)
+      local dy = cur[1] - prev[1]
+      local dx = cur[2] - prev[2]
+      local dist = math.abs(dy)
+      local old_prev = { prev[1], prev[2] }
+      prev = cur
+      if dist < threshold then
+        return
+      end
+
+      local buf = vim.api.nvim_get_current_buf()
+      local line_count = vim.api.nvim_buf_line_count(buf)
+      local dir = dy > 0 and 1 or -1
+
+      -- Build trail from origin to destination
+      local trail = {}
+      for i = 0, dist - 1 do
+        local t = dist > 1 and i / (dist - 1) or 1
+        local row = old_prev[1] - 1 + dir * i
+        local col = old_prev[2] + math.floor(dx * t + 0.5)
+        if row >= 0 and row < line_count and col >= 0 then
+          table.insert(trail, { row = row, col = col })
+        end
+      end
+
+      local elapsed = 0
+      local timer = vim.uv.new_timer()
+      timer:start(
+        0,
+        step,
+        vim.schedule_wrap(function()
+          elapsed = elapsed + step
+          vim.api.nvim_buf_clear_namespace(buf, ns, 0, -1)
+
+          if elapsed >= duration or not vim.api.nvim_buf_is_valid(buf) or #trail == 0 then
+            timer:stop()
+            if not timer:is_closing() then
+              timer:close()
+            end
+            return
+          end
+
+          -- Shrink trail from origin end (remove the dark/far end first)
+          local progress = elapsed / duration
+          local drop = math.floor(#trail * progress)
+          local start = drop + 1
+
+          for i = start, #trail do
+            local p = trail[i]
+            -- t=0 at start of visible trail (dimmest), t=1 at destination (brightest)
+            local t = (#trail - start) > 0 and (i - start) / (#trail - start) or 1
+            local char_idx = math.max(1, math.min(#trail_chars, math.ceil(t * #trail_chars)))
+            local hl_idx = math.max(1, math.min(#palette, math.ceil(t * #palette)))
+            pcall(vim.api.nvim_buf_set_extmark, buf, ns, p.row, 0, {
+              virt_text = { { trail_chars[char_idx], "TinySpark" .. hl_idx } },
+              virt_text_pos = "overlay",
+              virt_text_win_col = p.col,
+            })
+          end
+        end)
+      )
+    end,
+  })
+end
+
+return M

plugin/tiny-spark.lua

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+require("tiny-spark").setup()

scripts/minimal_init.lua

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+-- Minimal init for testing tiny-spark.nvim
+vim.opt.rtp:prepend(".")
+vim.opt.rtp:prepend("deps/mini.nvim")
+vim.cmd("runtime plugin/tiny-spark.lua")

scripts/test.sh

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+#!/usr/bin/env bash
+set -euo pipefail
+
+# Clone mini.nvim for test framework (if not cached)
+if [ ! -d deps/mini.nvim ]; then
+  mkdir -p deps
+  git clone --depth 1 https://github.com/echasnovski/mini.nvim deps/mini.nvim
+fi
+
+# Run tests
+nvim --headless -u scripts/minimal_init.lua -c "lua require('mini.test').setup(); MiniTest.run_file('tests/test_init.lua')"

selene.toml

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+std = "vim"

stylua.toml

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+column_width = 100
+indent_type = "Spaces"
+indent_width = 2
+quote_style = "AutoPreferDouble"

tests/test_init.lua

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+local T = MiniTest.new_set()
+local eq = MiniTest.expect.equality
+
+T["setup"] = MiniTest.new_set()
+
+T["setup"]["creates augroup"] = function()
+  local groups = vim.api.nvim_get_autocmds({ group = "tiny-spark" })
+  eq(#groups > 0, true)
+end
+
+T["setup"]["is idempotent"] = function()
+  require("tiny-spark").setup()
+  require("tiny-spark").setup()
+  local groups = vim.api.nvim_get_autocmds({ group = "tiny-spark" })
+  eq(#groups > 0, true)
+end
+
+T["setup"]["respects custom threshold"] = function()
+  require("tiny-spark").setup({ threshold = 10 })
+  local groups = vim.api.nvim_get_autocmds({ group = "tiny-spark" })
+  eq(#groups > 0, true)
+end
+
+return T

vim.toml

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+[vim]
+any = true