✨ feat: fzf README preview with glow support

- Show README.md in the right 40% of the fzf picker on hover
- Render with glow (CLICOLOR_FORCE=1 for colors in non-TTY pipe) when available, fall back to cat
- Preview command uses sh -c for fish/zsh/bash compatibility
- Bump version to 0.10.0

Generated with [Claude Code](https://claude.ai/code)
via [Happy](https://happy.engineering)

Co-Authored-By: Claude <noreply@anthropic.com>
Co-Authored-By: Happy <yesreply@happy.engineering>

CHANGELOG.md

@@ -4,6 +4,14 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
+## [0.10.0] - 2026-03-05
+
+### Added
+- fzf preview panel: hovering over a project shows its `README.md` in the right 40% of the screen
+- Uses `glow` for rendered markdown when available, falls back to `cat`
+- `CLICOLOR_FORCE=1` ensures glow outputs full ANSI colors even in fzf's non-TTY preview pipe
+- Preview command runs via `sh -c '...' -- {}` for compatibility with fish, zsh, and bash
+
 ## [0.9.2] - 2026-03-04
 
 ### Changed

Cargo.lock

@@ -293,9 +293,9 @@ dependencies = [
 
 [[package]]
 name = "getrandom"
-version = "0.4.1"
+version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "139ef39800118c7683f2fd3c98c1b23c09ae076556b435f8e9064ae108aaeeec"
+checksum = "0de51e6874e94e7bf76d726fc5d13ba782deca734ff60d5bb2fb2607c7406555"
 dependencies = [
  "cfg-if",
  "libc",
@@ -570,18 +570,18 @@ dependencies = [
 
 [[package]]
 name = "quote"
-version = "1.0.44"
+version = "1.0.45"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "21b2ebcf727b7760c461f091f9f0f539b77b8e87f2fd88131e7f1b433b3cece4"
+checksum = "41f2619966050689382d2b44f664f4bc593e129785a36d6ee376ddf37259b924"
 dependencies = [
  "proc-macro2",
 ]
 
 [[package]]
 name = "r-efi"
-version = "5.3.0"
+version = "6.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "69cdb34c158ceb288df11e18b4bd39de994f6657d83847bdffdbd7f346754b0f"
+checksum = "f8dcc9c7d52a811697d2151c701e0d08956f92b0e24136cf4cf27b57a6a0d9bf"
 
 [[package]]
 name = "rand"
@@ -809,7 +809,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "82a72c767771b47409d2345987fda8628641887d5466101319899796367354a0"
 dependencies = [
  "fastrand",
- "getrandom 0.4.1",
+ "getrandom 0.4.2",
  "once_cell",
  "rustix",
  "windows-sys 0.61.2",
@@ -857,7 +857,7 @@ dependencies = [
 
 [[package]]
 name = "tmuxido"
-version = "0.9.2"
+version = "0.10.0"
 dependencies = [
  "anyhow",
  "clap",
@@ -1133,9 +1133,9 @@ checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
 
 [[package]]
 name = "winnow"
-version = "0.7.14"
+version = "0.7.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5a5364e9d77fcdeeaa6062ced926ee3381faa2ee02d3eb83a5c27a8825540829"
+checksum = "df79d97927682d2fd8adb29682d1140b343be4ac0f08fd68b7765d9c059d3945"
 dependencies = [
  "memchr",
 ]

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "tmuxido"
-version = "0.9.2"
+version = "0.10.0"
 edition = "2024"
 
 [dev-dependencies]

README.md

@@ -17,7 +17,7 @@ A Rust-based tool to quickly find and open projects in tmux using fzf. No extern
 ## Features
 
 - Search for git repositories in configurable paths
-- Interactive selection using fzf
+- Interactive selection using fzf with live `README.md` preview (rendered via `glow` when available)
 - Native tmux session creation (no tmuxinator required!)
 - Support for project-specific `.tmuxido.toml` configs
 - Smart session switching (reuses existing sessions)

src/main.rs

@@ -116,8 +116,34 @@ fn main() -> Result<()> {
     Ok(())
 }
 
+fn readme_preview_command() -> String {
+    let glow_available = Command::new("sh")
+        .args(["-c", "command -v glow"])
+        .output()
+        .map(|o| o.status.success())
+        .unwrap_or(false);
+    // CLICOLOR_FORCE=1 tells termenv (used by glow/glamour) to enable ANSI
+    // colors even when stdout is not a TTY (fzf preview runs in a pipe).
+    // Without it, glow falls back to bold-only "notty" style with no colors.
+    // Use `sh -c '...' -- {}` so the command runs in POSIX sh regardless of
+    // the user's $SHELL (fish, zsh, bash, etc.).
+    let viewer_cmd = if glow_available {
+        "CLICOLOR_FORCE=1 glow -s dark"
+    } else {
+        "cat"
+    };
+    format!(
+        r#"sh -c 'readme="$1/README.md"; [ -f "$readme" ] && {viewer_cmd} "$readme" || echo "No README.md"' -- {{}}"#
+    )
+}
+
 fn select_project_with_fzf(projects: &[PathBuf]) -> Result<PathBuf> {
+    let preview_cmd = readme_preview_command();
     let mut child = Command::new("fzf")
+        .arg("--preview")
+        .arg(&preview_cmd)
+        .arg("--preview-window")
+        .arg("right:40%")
         .stdin(Stdio::piped())
         .stdout(Stdio::piped())
         .spawn()